SCIENTIFIC ABSTRACT DAVYDOV, B.I. - DAVYDOV, F.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000509820007-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 28, 2000
• Sequence Number: 7
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

I A001 fs 1 lptq~ p4WA SCTB-
7ao- -~ -/To j -/0 -17-2-/-o-1-7-4-
ACC Ma AP6007T52. SOURCE CODE: LM/0293/66/&6
~11 AUTHOR:- Ylorozov V..S.-~httshkg, V, S.;
ORG: 'none
t7
TITIE: Modeling the biologi cal effect of adepth dose froma monoenergetic proton
flux
SOURCE: Kosmi ,cheskiye issledovaniyIa, v. h:,' no. .1 1966,. 172-174
TOPIC TAGS: corpuscular. i-aftation, radiation effect, RBE, high energy-proton
ABSTRACT: Previous experiments suggested that- physical protection (shielding) some
times aggravates. the effeet -of ~ coryuscular radiationl,~on living organisms. - Unlike
electromagnetic radiation, heavy, particles create a higher ionization density along
their path and at the end of their penetration (i.e., linear energy losses increase
with decrease in particle vel cit , and RBE likewise increal"Ies). Thus, corpuscular
0
'Y
~radiation can have a widely varying biological effect on different parts of an
organism. Mcperiments,were condu.cted to trace the change in biological effectiveness
of particles during their passage through tissue until they were stopped. Mice were
placed in rows perpendicular to the,axis of 6 monochromatic beam of 120-14ev protons.
Animals were irradiated with a close of 1600 rad.(dos'e power rad/min from a
50
V f the
synchrocyclo,tron). One.group of animals received an Intraperitoneal injection o,
Card UDC: 629.198.621t

L 34975-66 (1) SCTB DD/RD-
ACC NRI AP6019602 SOURCE CODE: UR/0293/66/004/003/0482/0491
AUTHOR- Jay I.; Antipov, V. V.: Kozlov. V. A.; Saksonov, P. P.;
_ydov, B.
Shashkov
ORG: none
TITLE: The problem of using radloprotective pharmacological agents under spaceflight
conditions
SOURCE: Kosmicheskiye isaledovaniye, v. 4, no. 3, 1966, 482-491
TOPIC TAGS: manned spaceflight, radiation protection, cystamine,
methoxytryptamine, acceleration, animal physiology
ABSTRACTz In tests on mice (exposiad three times to 44.4 G, 1.4 G/sec accelera-
tions, with 5 min per exposure and 5 min between exposures on a centrifuge with a
4.25 m arm length) and guinea pigs (exposed twice to 22.0 G, 0.7 G/sec with 5 min
between exposures), lowered resistance to acceleration was noted after injections
of cystamine (80-150 mg/kg), AET.(15-150 mg/kg), 5-methoxytryptamine (75 mg/kg),
serotonin (50 mg/kg), and aminazine (1-10 mg/kg). A change in resistance after
injections of phenatine (2-10 mg/kg) and strychnine (0.05 mg/kg) was insignificant.
Thirty min after the combined injection of phen.tine (5-10 mg), strychnine
(0.5-1.0 mg), and aminazine (2.5 mg), the EKG's and respiration of dogs exposed to
6-8 G (0.2-0.3 G/sec) did not differ from those of control centrifuged animals.
Card 1/2 UDC: 615.7.035.1:614.876(20

L 34975-66
ACC NR. AP6019602
It was concluded that extreme caution should be exercised in recommending radio-
protectors, expecially AET, cystamine, and 5-methoxytryptamine, for use on space-
flights. The authors thank S. N. Komaroy for his active participation in the study.
Orig. art. has: 5 figures and 3 tables.. [CD)
SUB CODE: 06,-",/ SUBM DATE: 28Feb66/ ORIG REFo. 017/ OTH REF: 013/ ATD PRESS:'
s- 0 21

L 03775-67 FSS-2/EWT (I) /EWT (m) /EEC W -21ECC Kfff' TT./T)T)./Rpl/(-A
ACC NR, AP6028342 SOURCE CODE: UR/0293/66/004/004/06 633
ov, Dobrov, N. N.;
AUTHOR: Volynkin, Yu. M.; Antipov, V. V.; Davyd B..
Nikitin, M. D.: Pisarenko, N. _F.; Saksonov, 43
ORG: none
X
19
TITLE: Assurance of radiation safety during the Voskhod-l and Voskhod-2 flights
SOURCE: Kosmicheakiye issledovaniya, v. 4, no. 4, 1966, 630-633
solar
TOPIC TAGS: space radiation, flared radiation
shielding, radij,~ "on dos etry, nuclear emu]. i n, radiation 'bA, lysogenic
bacteria/Voskho -1A Vosk od-2 *L0=7
ABSTRACT: The Voskhod-1 and Voskhod-2 flights were characterized by extremely high.:
orbits (apogee 495 km). It was calculated that Voskhod-2 would have a far higher
radiation exposure due largely to the proton component in the area of the Brazilian
anomaly, where in the course of 20 min the spaceship would acquire about 80% of the
.daily dose. The extravehicular surface dose of electrons during 20 min could amount
to I rad. In order to reduce this to zero a protective layer of 100 mg/cM2 is
required. Leonov's spacesuit fulfilled this shielding requirement. Since exposure
to radiation may reach dangerous proportions during solar flares the following radia-
tion protection measures were taken during the Voskhod-l and Voskhod-2 flights. A
preliminary study was made of radiation conditions on the proposed orbit. Forecasts
Card lj.~_ UDC: 614.876(202)

--0- 4 ~-- _-. ~ r
L 03775-67
ACC NRo AP6028342
of the possibility of solar flares were made. The radiation dose was reduced by
spacecraft shielding. Changes in the level~of radiation in the upper atmosphere were
checked by means of ballon sondes. Integraldoses and dose rates were measured by
on-board radiation meters. Individual dosimeters of the ILK, IKS, and IFKN types
and nuclear emulsions were used to measure the total doses acquired by each cosmonaut.
Living organisms were carried on board as biodosimeters. Radioprotective drugs were
.carried for emergency use by the cosmonauts. In order to determine the effect of low-
energy electrons during Leonov's EVA the two cosmonauts carried identical sets of
dosimeters (on the chest under the spacesuit and in external hip pockets), which were
capable of working in high-vacuum conditions. However, Leonov's dose did not exceed
Belyayev's. Individual and.on-board dosimeters indicated that the total dose re-
ceived on Voskhod-2 was 70 * 5 mrad, while that on Voskhod-l was 30 ' 5 mrad.
Analysis of the spectral composition of radiatiun made by nuclear emulsions inaicated
the presence of particles with linear energy losses comparable to ions of He, B, 0,
and Ar. The radiation dose, taking RBE into account, did not exceed several dozen
ber. Biological objects carried on Voskhod-l and Voskhod-2 showed increases in non-
disjunction of chromosomes and increases in frequency of dominant lethal mutations
in Drosophila, and disruption of the mitotic mechanism in microspores of Tradescantia;
these increases, however, were small. Lysogenic bacteria carried on the two Voskhod
flights did not show any effect of radiation or other spaceflight factors. Experi-
ments performed by B. B. YeRoroy have indicated that various stages of mitosis in
Tradescantia microspores possess varying sefisitivity to the effects of spaceflight
factors. These findings confirmed Yegorov's hypothesis that the chief cause of
Card 2/3

L
ACC NRt AP6028342
disruption of the mitotic mechanism is weightlessness and that chromosome recon-
structions are due largely to combined factors related to spaceflight takeoff and
reentry. Orig. arti has: 2 tables. IBM]
SUB CODE: 061 SUBM DATE: 21Aug66/ ORIG REF: 006/ ATD PRESS: S-D

L 03777-67 FSS..,:
_k1t_C_kR- AP6028343
VIVEEE"'~'i_':~
SOURCE CODE: UR/0293/66/004/004/0634/064
AUTHOR: Zhukov-Verezhnikov, N. N.; Mayskiy, I. N.: Delone. N.'L.; Ry~akov,'N. I.r
~ozlov' V. A.; DavX ov, B. j.; Antipov, V. V.: _-Saksonov,_j!_ P.; Ry~g!Koya._ K. D.;
Tr5u1ev,___d'._'P.
ORG: none
TITLE: Biological investiBations on the Voskhod-l and Voskhod-2 spaceships
SOURCE: KosmicheskiX~ issledo-van.iya, v. 4, no. 4, 1966, 634-640
TOPIC TAGS: biologic space ghltL"" , -1Tw*puzW4_ bacteria, *W*iW'
-rrateePzve dru spaceflight fAWe&t_-^ pinemsew4, wheat.sowd/
Voskh6"d*__f04"VM111o'd" 2 -40 C&
ABSTRACT: Experiments were performed on the Voskhod-1 and Voskhad-2 spaceships to
test the effects of spaceflight on lysogenic cultures of E. colilK-12 (A). The
cultures were carried in 1.5-ml ampules on'board spa cesh i p'~ _ciWd7_:CrFLeonov's spacesuit
pocket during his EVA. Some of the ampules contained the radloptotective drug 0-
mercaptopropylamine. Controls were kept at the cosmodrome and at the home laboratory.
Results showed that on the basis of viability there was no difference between samples
carried 'on Vookbod-1 and the controls. Experiments on Voskhod-2 resulted in a
slightly high?r viability on the part of experimental cultures as compared to con-
trols. Phagetproduction of experimental cultures carried on the two.flights also did
Card 1/2 MM 629.19R.621t%7A-A

L 03777-67
ACC NR. AP6028343
not, exceed phage production of controls, Thus, it was not possible to demonstrate
the protective properties of 0-mercaptopropylamine. An attempt was made to determine
whether spaceflight sensitized lysogenic cultures or E. coli K-12 (A).to consequent
exposure to small doses of x-rays. Results showed that phage production in space-
flown samples was almost identical to that of the controls. In addition, air-dried
seeds of pine and winter wheat (PPG-186) were carried on Voskhod,2-and in Leonov's
pocket during his EVA for the purpose of determining the genetic effects of space-
flight factors. Results did not reveal any substantial differences between the two
spaceflight-exposed groups,of weds and the controls. It is assumed that the absence
of the effects Of spaceflight factors on lysogenic. bacteria and seeds of higher
-plants in these two flights is due to the particular conditions under which these
flights took place. Orig.-art. has: 5 tables.- (BMI
.2Z
SUB CODES 06/ SUBM DATEI 21Apr66/ ORIG REFS 013/ OTH REFS 002/ ATD PRESS:
Card

L 2�363-66 EWt (1 SCTB DD
ACC NRi AP6018063 SOURCE CODE: UR/0020166/168/003/o6gi/o693
AUTHOR: Davydo,~, B. I
ORG: none
TITLE: Tolerance to critical acceleration after exposure to ionizing radiation
SOURCE: AN SSSR. Doklady, v. 168, no. 3, 1966, 69i-693
TOPIC TAGSi combined stress, acceleration, gamma radiation$ Ionizing radiation,
critical acceleration, acceleration tolerance, acceleration biologic effect, radia-
tion biologic effect
ABSTRACT: The reaction of the irradiated organism to critical accelerations was
studied using 1690 male mice. The reaction of the animals was evaluated as a func-
tion of their viability after exposure to radial accelerations of 42--44 G on a
centrifuge with an arm radius of 0.31 mi The force vector was iii a back-to-chest
60
direction. Prior to acceleration, the animals were irradiated with Co gamma rays
in doses ranging from 100-4000 r (13-18 r/min). Exposi e to acceleration took
ur
place iron l.to 45 days after irradiation, It was found that 42--44 G caused the
death of 40-50% of the control animals. Deviatiuza from this percentage r6flected
altered'acceleration stability on the part oi irradiated animals. Starting with
the first and second day after irradiation, thq toleirance of irradiated mice to
Card UDC: 612.014.48

L 29363-66
Acc. HR, Ap6oi6o63
T swaieu aaa ii vas noTem Tnam ioverem~T#Olerance SO 86111 n V 8
jamn luuv r wao, acc.e.L.er o a
Card 2/3

,rk, 7,-' - , ~ ~ " F, - ~ 1 - ~ . I . l: '-' .--~ : ~ I
;-c7 -~ '. -1
I

ACC W AT7011642
SOURCE CODE; UR/0000/66/0001000/0001/0006
AUTHOR: V01Y111(in) Y%1# M.; Ant:lpov, V" V.; DaVIOVII-B.- 1. Dobrov, N. N.;
-J
Nihitin~ M. D.; Pisaronkol, N,.F.; Salcaonov$_P._~.
ORG: none
TITJ-I?: Rndiation safety during the flights of the Voskhod and Vosldiod-2
spaceships
SOURCE: International Astronautical Congres's. 17th, 11ndrid, 1966. Doklady.
no. 4. 1966. Obaspechaniye radiatsionnoy bazopasnosti pri poletakh 1corabley
"Vosl.khod" i "Voskliod-21, 1-6
TOPIC TAGS: ionizing radiation biologic effect, proton radiation biologic
effect, EVA, space physiology, space'biolo3ic experiment, space flight
Hos~mos-47. space flight, Voskhod-l spaco flight
ABSfRACT:
Radiation conditions on the Vo3khod-1 trajectory
were fcrecast using xosinos-47,.-a satellite launched
into the proposed'orbit shortly before the manned space-
flight. A gre.ater r-ad.iation hazard was.predicted for
Cg,dl/7

ACC NR: AT70116L2
the Voskhod-w spacecrosr because of the higher orbit
and extravehicula*r activity planned for this flight.
Preliminary calculations set the maxim=, 2L-hr dose
at 0.1 radi about-8.0% of which was expected to accumu-
late during 20 min spent passing through the region of
the Brazilian anmmaly. At was calculated thaE.the EVA
would exp?se Leanov to as much as 1 rdd of electron
radiation In a 20-nin period, and that shieldinS of
2
.100 ma cm would be required,to eliminate this hazard.
Lmnovfs spacesuit fulfilled the shielding requirement.
A total dose of no more than several dozen RUI was
anticipated for the V03khod~spacecrew for the 24-hr
period.
The possibility oi radiation Injury from. solar
flare protons was carefully'considered. Disruptions
of the Earth's geoma.-netic field after sone solar'flares
are known to affect the "radiation screen" of the geo-..
ma-netic field. Thus,-approximate total doses from
large flares of the type 10 March 1959 and 12 t1ovember
1960 were calculated vi'th different shieldInS thicknesi-
ses, discounting the screening
, effect of the Earth's.
magnetic field. (see Table 1)
Card 2. 7

_ACC_ MR, XV011642
Table I
-Energy of protow-15' Shielding of ait-
0
E, Mev equivalont: S?_
s tnnce, - ggl cm
a from flare, rad
12, 1960 May 10, 1
Et! 40. 1.5 550 11'20
E >, 80 5.0 -90 70
E> 100 7.o so 20
E -r 20.0 24.0 10 1
Ars can b6 seen from the table, cosnonauts; can
receive radiation doses sufficient to disrupt %forking,
capacity or endanger life during-a solar flare. Con-
sequently, an important part of the radiation safety
prosran consists of predicting potentially hazardous
solar flares.
In Addition.to ~he measures just described, the'
Voskhod radiation safety iy~stLmn Included measurements
of radiation levels In the upper atmosphere usina sounding
balloons. In addftto'n, a radiometer on the' craft meas- '
ured total dose and dose rate, each cosmonaut carried
~card 3*7

ACC NR: AT7011642
individual'~osimeteis (ILK jKS", andjMtypes, and
nuclc~gkr emulpions), and the*fe were biologlc'al.dosimeter3
on board. Chemical radioprotectors were available for
.;emergency situations.
In order to determine the possible effect of elec-
tron radiation during the EVA, both cosmonauts wore
an identical set of dosimeters equipped.to work in a
vacuum, one in the cheat area under the suit, and one
An the outside hip pocket.
AlthougA the period before the Voskhod-l launch
was one of-minimal splar activity,, on October 9., 1964,9
(3 days before the'launch) at 8:30 A. M. a 23-fold
Increase-in radioactivity was noted In *the*upper atmos-
phere at an altitude of 22 km. The inereased.radioac-
tivity lasted,2 hr and is.still unexplained.
Doses obtalned~by Voskhod crew members are shown
In TAble 2.
Card 4/7

ACC NP: N001161-2
~
i radiation dozes obtained by*crew mem-
Table 2. Tota
bers on VosIchod-1 a nd Voskliod-2 spacecraft, ifi mrad
(tissue)
.Name of spacecraft Individual dosic- R-ZAM on-board dozi-
meters meter
avar.G-e dcae werege lom for dose rate ,
for =%Qtit, Jose ratr,- (IJ&t, mud mrad/day
mrad z~acj/day
losldiod-l 3045 29�3 27:tl 26+1
Voskhod-2 70�5 05�3 .65�1 6o+l
The total radiation dose received by Leonov waa not
higher than.that obtained by Belyayev due to electron
radiation outside the spacecraft., as had been expected.
The fact that the absorbed tissue dose~s*received by
Voskhod-l and Voskhod-2 Oosmonauts were two and four
times higher, respectively, than doses received on the
Vostok flights can b6 explained by the'difference in
orbits and by some increase in the intensity of primary
cosmic radiation characteristic for quiet Sun periods.
Card 5/7

ACC NR- AT7011642
The radiation doses for Voskhod crew members did-not
exceed several dozen REM each, as calc~ulated.. This
radiation dose is not considered Injurious to human
health.
Biodosimeters carried on the Voskhod craft included
seeds of higher plants, microorganisms,'and fruit flies.
In addition, Leonov had pine and wheat seeds and lyso-
:genic bacteria in his hip pocket during the EVA. Analy-
sis of this biological,meterial showed that spaceflight
factors had the following effects:* mitosis was dis-
.rupted in Tradescantia paludoP3 microspores, and there
.Were more dominant lethalities and cases of nonseparation.
of chromosomes in 'Drosophila. These shifts were of the
same type as those observed in the Vostok-2, -3, and -6
experiments, and were-.also numerically*insignificant.
.Lysogenic bacteria and plant seeds exposed In'open space
or kept in the spacecraft did not show the effects of
spaceflight factors.
Yegorov's experiment with Tradescantia.microspores
demonstrated that the various mitotic phases of this
..organism have diffe'rdnt.sensitivities to spaceflight
C,,d 6/7

DAVYDOV, B.I.; SHCHEDRENOK, V,P,
Fundamental differences between the social and economic consequences
of technological..progress under socialism and capitalism Trudy
LIEI no.35:3-23 '61. iMIM 14--8)
(Technology and civilization)

BUTDOT, B.L., doteent, kandidat tekhnicheskikh nank. laureat Sfulinskoy premii.
Calculating the starting resistance of an induction and shunt motor for a
giTen'duration of the starting process. Vast.elektroprom. 18 no.10:1-4 0 047.
Off-'RA 6:12 )
1. Giprouglemash.
Mectric motors. Indaction) ,t,

. . ... ; ---
- 9.~?A4 i~ 11?17P-P-~-. I-.-:- -, - - -- - - - - - -
DAVYDOV, B. L.
Teoriia kolodochno-lentochnogo tormoza. (Vestn. I-lash., 190, no. 1, p. 22-2h)
Theory of a block and band brake.
DLC: TN4.v4
SO: Manufacturing and Mechanical Engineering in the Soviet Union, Library '
of Congress, 1953.

4%
1

1 0
0 1 J
11
* A s L A . a
1
V
-
-
-
-
0o
OP "MOO.,
v
9
YLOV - L -

96 c
149k t)kviAlWe of o4wil" iveleimi to W-
0" www% littli a cokuww" of OF w4v

go a r1mum*fibilt. 11 L kkvttkr.-. 1,1ram,
!!--I -
vV
12
5
111 -60
-
e.
) .40
0.0 EnIuj*S clet x pmvitolm artiL* t~y this av:N,
00
11esin, (No. It)) (0,1., 1047i1 taL,!L .
go tK411 OM Wdf Or S111146611t 46VfkWkW14 (411 CNAk" Ok' AO
the AwowtvAik comixe tw amumd hjumt. b
,
j
11j%N*y IS dvVek$jW AOM If* Srpo%jn~&Jt fr4ItjV
00 a AUAI-, - 2bled. + fr-Adj)-l. wbnv At is t'- do a
10(tim W" Ap 0, WA At-, k the Imlimml uw~ 00
0- a with a sW v... Sy rAkabOy "WS the onlim
40 0
00 . dmulcliMiL is abown to 86c cTWkwu unia, L
119ft 0114AW61 09" finM IVINIKIN 141V AOW-
If4imik"If 604 duj#A a1v 81mi f%K tilt v4hu!-
00 ?fUlAning MWAIKVS and slartift lium. Atic%A--
is giwa of a 7-0&p matur for x 730 r."t. nvknLv -
tilt ft"*U we cwwAI,:d with [how ONAined 11 -

NOR 0
Ao
too

&I," I L A NITALLU
16KAL LITIRATWOE CLAIIWKAT$N U40 0
too

..mobs %.logo .4t,

it 111
~ 811111 as a.- Lit 0
ad a 14 w I IN 0 9 A 0 31 9 W

,
-
-
-
--
-
~i

9
9 0 1 0 0
0
0
0
0
1
110
:
0 0 41 6 41 0 a
0001000 00 0 0 0 9 *. 0 0 0 0 0 0-6 0 0 0 0 0 0 to 0000 00 O

~ 5. L.
Davydov, 11. L. "Inspecting the winches of lifting machinery when the cahle lies in several
layers", Vestnik mashinostroycaiya., 19/,8, No. 12, p. 24-2,4.
SO: U-2888, 12 Feb. 53, (Letopis, Zhurnal Iny1ch Statey, No. 2, 1049).

DAMN, B. L.
Raschet i konstruirovanic shaklitnykh pod'Iemnykh mashin. Pod red. N. F. Rudenko.
Dop. v kachestve uchebn. posobiia dlia elektromekhanich. spetsiallnosti gornykh
vuzov. Moskva, Ugletekhizdat, l9h9. 298 p. diagrs.
Bibliography: p (297)
Calculating and designing mine hoisting machines.
DLO: TN339.D3
SO- Manufacturing and Mechanical Engineering in the 'Soviet Union, Library
of Congress, 1953.

rAvyt,c,v-)* ~.f.
-,~=
5)f S 11 -
0
33339
Raschet Irtskovykh Soprotivleniy Asinkhronnogo Dvigatelya Dlya Shakhtnylrh Fod'Emnylh
Ustanovok. Vestnik Elektroprom-Sti, 1949, No 10, c. 6-11.
SO: Letopist ZhurnalInykh Statey, Vol. 45, Yoskva, 1949
k~~ k" Nwli4 ( X~A -

DkVYDOV,. B.- E~
~zl -
Nekotorye voprosy proektirovaniia shakhtnykh podIemnykh ustanovok.
14oskva, Ugletekhizdat, 1950. 116 p. diagrs.
Certain problems of designing mine heisting equipment.
ELCs Tt'339.D28
DO: Manufacturing and Mechanical Enginee:ring in the Soviet Union, Library
of Congress, 1953,

USSR/Mining -,Mine Equipment 1951
'Valculation of Rine Hoisting Plants Having Lim-
ited Number of Start' Resistances of Electric Mo-
tors," Prof B. L. Davydov, Dr Tech Sci, Laureate
of Stalin Prize
"Zap Irst Gornoy Mekh" No 9, pp 90-102
Stat,es that usual method for calcg hoisting in-
stallations leads, in most cases, to sharp dis-
crepancy between design and actual periods of
Starting, giving hoisting cycle considerably
longer in comparison with rated value. Develops
method which eliminates this descrepancy by
204TT:7
uls~_ quip" (Cd:utd) .1951.
S*Iecting values for start resistances of asyt,
cbronous motor. af, wbich starting pe!riod corres-
Poo .a. to -a given time.' Alco discusses soln of
at giVen,
.roverze:problem: detm of actual hoist
start resistamceO.
204TTT

1r)
DAVYDOV B *L profesaor, doktor takhnicheakikh nauk; SOLOVYEV,
-~L ~01111t, kandidat tekhnicheskikh nauk. N
A.A., ( ec-fievi
r, C4-)
A valuable and necessary book ("Mine haulage." A.O.Spivakovskii.
Reviewed by B.L.Davydov, A.A.SOJOVIOV). Ugoll 29 no.3:46-47 Mr
154. (RUA 7:3)
1. KharIkovskiy gorn" institut. (mine haulage) (Spivakovskii,A-0.)

SI
MAVMV, B.L., professor; TIKHOVIDOV. B.D., doteent.
Large elevator and ventilator Installations In mines of the
Chinese People's Republic. Gor.zhur. no.5:35-38 Ny 156.(NM 9,.,8)
1. Msarlkovskly gornyy Institut.
(China.-Nining engineering)

DAVYDOVP B L professor.
isiff"t'lon of mlnlng
no.l,:40-42 Ja 157.
(PoiPing-Coal
equipmen.t in Peiping. Mekh.trtid.rab. 11
(K[aA 10:5)
mining mchinery-Exhibitions)

PA- V1Y 0
122-2-4/33
AUTHORS: Davydov B.L., Doctor of Technical Sciences, Professor,
and--Witoff~-SU-IUU Engineer.
TITLE: Certain, Precisions- in the Theory of Friction of Flexible
Bodies (Nekotoi7ye utochneniya teorii treniya gibkikh tel)
PERIODICAL: VeBtnik Mashinstroyeniya, 1958, No.2, pp. 16-19 (USSR)
ABSTRACT: In the theory of enveloping transmissions, n.Ye. Zhuko-
vskiy introduced the distinction between the sliding and rest
sections of the enveloping arc. The sliding arc extends to
the point where, with a given friction coefficient, the Buler
equation yields the required difference in tension.. In the
present paper, the finite thickness of the belt is considered.
A method is given by which the length of the sliding arc is
computed when a belt of substantial thickness allows some
shearing (11'splacement within its thickness. Knowing the
geometry of the belt and pulley, the friction coefficient and
the elastic constant of the belt, an auxiliary quantity is
found (Eq.10), with the help of which, from a relation (Eq.2)
expressing the ratio of the belt tensions, the true arc,.o;
sliding is computed. In a typical example, an are of 114 is
found, compared with 132 determined on the basis of the
simple theory. The difference increases greatly when the belt
Cardl/2 contains steel reinforcement. Then, the sliding are drops to

122-2-4/33
Certain Precisions in the Theory of Friction of Flexible Bodies
I
to 57 0 by the new theory, but remains 1320in the old. The
sliding are can disappear altogether. This has been observed
with mine conveyor belts. The new theory also modifies the
computation of the belt slip loss and shows this to be less
severe than the older theory predicted.
There are 4 figures and 5 Russian references.
AVAILABIR: Library of Uongress
card 2/2

DAVYWV, B.L.., prof., doktor tekhn.nauk; CHZHOU SRI-TUT [Chou Shih-YUJI
nz
Most advantagqous cross section of troughs and flow of material
for mine haulage.-Nauch.dokl.vys.shImly; gor.delo. no.4:
181-187 " 58. (MIRA 12:1)
1. Predstavleno kafedroy gornykb mashin I rudnichnogo transports.
Kharlkovskago gornogo instituta.
(Mine haulage) (Coal handling machinery)

'-'-,J)Ayrmv T,
a B..
.*,,-.-Prof.
Hydraulic brake theory on mine hoisting machines. Izv.vys.ucheb.zav.;
gor.shur. no~7:94-103 '58. (MIRA 12:3)
1. Kharlkovakiy gorMy institut.
(Mine boisting) (Hydraulic brakes)

DATYDOV, B.L., ALIKSANDROVA, M.N.
Investigating an Increase in load capacity of mine care by
vibration. Uauch. trudy MGI no. 20:231-241 158. (MIRA 11:8)
(Mine railroa'di-Cars)

DAVYDOV B. inzh.
LL-=-P~
Repairing plunger pairs of the X-82 carburetor pump. Avt. tranap.
36 no.10:47-48 0 158. (MIRA 13:1)
(Autonobiles-Bngiues--Carburators)

DAVYDOV, B.L.. prof.,doktor takhn.rAuk
Ma"B"Sm"WnCASOI-in mine hoisting units with bicylindroconical Arums.
Nauch.ddlcl~vys.ehkoly; gpr.delo nol:16l-166 '59.'
(MIRk 12:501
le Predstavlena kafodroy gorm7kh mashin i rudnichnogo trans-
porta Rwlko4skogo goft o instituts,
(Mine hoisting) OfHoisting Maiclibiery--Vibration)

DAVUOV,.BtL., prof.
Tewporar7 overloading of coal mining machine motors. Izvo
vyseuchabonavo; goreshur. w.7:127-136 139.
(NDU 13 14)
1. Kharlicovskiy gorzWy institute Rekomendovana Imfedroy gomoy
ele"rotekhnikiv
(Coal mining machinery-Jlectric driving)

DAVYDOV, B.L. -,Prof.
'. __ - I _- _ ." '. ~...;
Behavior of the tail rope In balanced mine hoisting systems. Izv.
vyseucheb.iavo; gorezhure no.lo:i26-134 159.
(KIRA 13:5)
1. Kbarikovskly gojrnyy Institute
(mine bolinting)

, prof.
Elements in the theory of tvo-chain scraper conveyors mving in
sections. Jzv.vya.uchebexav*; goreshure no.2:126-132 160.
(KIRA IA:5)
Is Kharlkovskiy gorMy institute
(Conveying machinery)

DAVYDOV, B.L.9 prof..
Theory of movement of-coal-cutting machines vith a hauling rope.
iz~v. VYS, ucheb, zave; gore, zhur, no-3:79-89 160. (MIR-t -14:5)
1. Khar')covskiy gornyy institut. Rekomendovana, kafedroy gornykh
mashin i rudnichno r trans~orta.
Coal*mlning machinery)

B.L., prof,
Performa as of an asynchrogous motor during brief signific=t
overloading. Izv.vys.ucheb. Sav.; gor. shur. no.6tU6-121 160.
(NIRA 14:5)
1. Kharlkpvskiy gornyy institutq. Rekomendolana kafedroy obshchey
elektrot0khniki Sve#dlovskogo gornogo institute. imeni V.V.Vakhrusheva.
(Paeotrio motors, ind~otion)

DATMOV, Boris Llvovioh, prof., doktor tekhn. nauk; SKORODUMOV, Boris
; khn TK
Ale~lissndriovo to . nauk; KTI 0, A.K., otv. red.;
SHOROKHOYA. A.T., red. iad. BMYRNTA, Z.A., ',nkhn. red.
(Dynamics of mining meohinIaryl Dinamike gornvkh mashin. MoskvB,
Goa. nauchno-tokhn. izd-vo lit-ry po gornomu delu, 1961. 334 p.
(MMA 14:5)
(Mining machinery)

PAVYDOVq B.L.t prof.
~ct~ion L-AR4 moving on dri vhee2z In mine transport and
Vin
CMJ m41nin 11M 1xv. TY8* UCbOb* xave; gore zhurno.2:105-IU
161. bM Ut3F
I* MmrlkoTskiy gorWy J=tltute Aekpmdovana kafedroy gornykh
mashin i rudniehnogo tmnvpbrtAi Miarskovskogo gornogo inBtituta.
0(im bau2age). (Coa3. mining madzinery)

DAVYDOVV, B.L., prof-.p doktor tekhn.nauk
Larp-scale mine hoists in Csoohoolovakia. Gor. zhur. no.4W~47
Ap 161. (MIRA 14:4)
1. Kharlkovskiy gornyy institut.
(Czachoolavakia-mine hoisting)

DAVYDOV, B.I,
Statistical dynamics of an incompressible turbulent fluid, Dok3.~AN x
9SSR 136 nool.-47-50 Ja 16L (KM 14:5)
3-0 Iwtitut fisiki Zsmli-im, O.Yu-Sbmidta AN SSSR. Predstavleno
akadlemikom M.A.Uontovichem.
(Fluid dynamice) (Turbulence)

DAVMM,, B.L., prof.
'Study of the interaction between the load-bearing and the pulling
parts of belt-ohain conveyers* Izvevysouchebazave; gorezhur.
no*3:3.17-138 161. (MMA 15 94)
1, KharIkovskiy gornyy institut; rekomendovana. kafedroy gorrqkh
mashin i rudnicbmgo,transporta, Khartkovskogo gornogo instituta.
(Conveying machinery)

DAVYWV,O B. L,
Investigating the interaction of two contiguous flexible bodies.
Trudy Inst.mash.Sem.po teor.mashi me" 23 no.89/90".15-26 262.
(MIU 3.5 -~ 6)
(Strains and stresses)

YEVNEVICH, Anton Vladislavovich; PAVEXIV, P,L', prof., ret-senzenti
SOLOVIYEV, A.A., pror., rexsenzF=,, SHWKYANP I.G., prof.,
retsenzent; VASILIYEV, N.V., dots., otv. red.; KGVALI, I.V.,
red.izd-va; BOLDYI(EVA, Z.A.9 tekhn. red.; MAKSIMOVA, V.V,,
tekhn. red,
(Machines formine haulage] Gornye transportnys mashiny.
Izd.2. Moskva, GosgortekhizdAt. 1963, 467 p~ (MIRA 16:9)
1. Kharlkovskiy gornyy institut (for Davydov, Solov'yev)
2. Donetskiy politekhricheskiy institut (for Shtolonan).
(Mine haulage)

DAVYDOV, Bori Ivo rof.., doktor tekhn. nauk; SKORODUMV, Boris
Aleksandro" dots., kand. tekhn. nauk; BUBYRI, Yuriy
Vladirairovichi-dots., kand. tekhn. nauk; SLIBKO, V.M., inzh.,
retsenzent; CHIST~YAKOVA, L.G., inzh., red.; GORNOSTAYPOLISKAYA,
M.S., telchn.
(Reducing gearsp--iaesign and testlmg]Redjktoz7; ko-hs'truktsii,
raschet i ispytaniia. Moskva, Mashgiz, 1963. 472 p.
(MIRA 16:4)
(Gearing)

DAVYDQVj Bo.:ke AjZgZ&qjLprof., doktor tekhn.nauk; SKORODUMOV, Boris
Aleksandroviolk, dots., kand. tekhn. nauk; KHORIN, V.N.,
doktor tekhn. nauk, reteenzentf.A=YUNYAN, S.M., otv. red.1
KOVAL'J, I.V., red.izd-va; MINSKER,.-L.I., tekhn. red.
[Design and conatruction.of coal mining machines] Rasobet k
konstruirovanie uglidotvaiushchikh mashin. Moskva, Gosgor-
tekhizdat, 1963. 589 P. (MIRA 16:8)
1. Glavnyy konstrAtor Dongipro4lemasha (for Arutyunyan).
(Coal mining machlner7)

DAVYDCOV, B.M.; SOLMM, N.A.
Large block creation of an automatic cement and conersto pleat.
Awt.derj18 &e.6:13-14 0 155. (XLRA 9:2)
(Concrete pleat*)

BASOVO A.N*; GUTTSAYTO V.I.; DAVYDOVP B.N.; KIRPICHEV,, V.M.
Differentiation of industrial wholesale prices of motor
fuels. Xhim. i takhe topl. i masel 8 no.9t46-51 S 163*
(MMA 16111)
1. Vseooyuznyy nauchno-issledovatel'skiy institut po pere-
rabotke nefti i gazov i polucheniyu islmsstvennogo zhidkogo
topliva.

DAVYDOV, B.N.; BASOV, A.11.; GSI,11,13, I.E.
Coqt of snent NafteDer. .1 AO-5:17-20
164. (MIRA 17:8)
2. Vaesoyiizn_vy inutitut po parerabotke
nefti i gaza i poluchonbrii ir,'Wss-tvannogo zlil.dkogo topliva.

GELIMS, I.E.; DA~~V,_ B.N.
Problems of economics in the development of the production of
catalysts for the petroleum industry, Khim. i tekho topl. i masel
9 no-345-48 MrI64 (MIRA 17:7)
1. Vsesoyuznyy nauchno-issledovateltskiy institut. po pererabotke
nefti i gazov i polucheniyu iskusstvennogo zhidkogo topliva.

TITOVA, A.I. prof.; GOLIKOVA, T.M.; VOIXOVA, A.T.; POKROVSKIY, S.A.;
I~A_ NAZARETSKIY, F. Ye.
Clinical aspeots and treatment of chronic pneumonia in children.
Sbor. nauch. trud. Ivane gose mede inst. nos 28:3-11 1 63
(MIRA 19:1)
1. 1z kafedry detskikh bolezney ( zav. kafedroy - prof. A.I.Titova)
YaroslRvskogo gosudarstvennogo meditsinskogo instituta (rektor -
prof. If. Ye. Yarygin).

DAVYDOV, 3. P.
Treating othematoma, Vest. oto-rin. 19 no.1:107-108 Ja-F 157
(MLRA 10:4)
1. I.z gorodekoy bollnitsy g. Lebedin Sumokoy oblasti.
(BAR--TUMORS)

DAVTDOV. B.S.
Recent trends in the development of feeler gauges used for the
control of surface smoothness. Ism.takh. no.6:46-48 N-D '55.
(KEMA 9:3)
. (surfaces (Technology)) (Keasuring instruments)

-~.t 7~
DAVYDOV, B.S., inzhener.
The necessity of standardizing the basic charkicteristics of
clearance gauges. Standartizataila no.2:58-61 Mr-Ap '56.
(KLRL 9:5)
1. VeenoyuzWj nauchno-isoledovatellskiy institut Komiteta stan-
dartov, mer I izmeritellnvkh priborov.
(GaUgeS)

DAVYDOV, B. S.
Comparative study of the Indicated measurements
gauges and optical instruments. Priborostroenie
of surface-smoothness
no-3:23-26 Mr '56.
(MLU 9:8)
(Surfaces (Technology)--Measurement)

--------- -
V
Catogory TJSS1iVGcnor--l Probloms - Luthod wid Toolmiquo of Invor.-
tigation
,,-4
-'Lbs Jour Rof Zhur - Fizika, No 3, 1957, No 5607
-uthor Yo-;orov, Davyd-o-v, B S
Titlo :Vorification of wo or Ins~r~uincints for tho Control of Rou~,;hnoss
of Surfacos.
Orig Pub :Izmorit, tc-khi-dka, 1956, No 3, 64-66,
-I,bs-%-,ract:.1 survoy is givon of thoaisting mothods for choclkin~ foolor
instrumonts, Llid also a doscription of various spacimons with
irrogular profilos, Spocial spocimoris aro proposcd forlho
tostin- of profilogrnplis (motf-~llic slabs 40 x 40 x 10 mm), on
which aro loo %tod throo groups of graduation linos, in g roups
of fivo caoli. Tho gradudtion mark h-is parobolic, triangular,
and trapozoidal profil,s.
Card 1/1

MAVYDDV. B. S.
....... -
Conference on present-day methods and means for rating surface
smoothness. Ism.tekh. no.4:83 J14g 156. (MM 9:11)
(Surfaces (Technology)) (Metals-Irinishing)

IkA.VrDOV. B.S... inzhener.
Some correlations in the readings of surface roughness measurementes
:SAwAartizatefts, zo.~:25-28 N-D 156. (MIJtA 10: 1)
I* Vvesoyusayy sauchno-Issledov&tel'skly institut lomiteta standartov,
ver i lzmeritel'sykh p4borov,
(Surfaces (Technology)-Measurement)

RAVTDOV, B.S., insh.
instruments in checking the surface roughness.
Vest.mash. 37 no.1216"7 D 157. (MIRA 10:12)
(Surfaces (Technology)-Measurement))
(Pneu-ntic machinery)

24(0); 5(4)j 6(2) PHASE I BOOK X]aWITATIOX SO"15
Ysosojru=yy nauohno-lasledovatellskiy lastitUt matrOlOgli IXOril
D.I. Mendeleyeva
Rareraty nauchno-josIedovatellskikh robot; obornik Wo.2 (ScIcntinq
Xssearch Abstracts; Collection of Articles, Yr 2) Moscow#
Standartgiz, 1958. 139 p. 1,000 copies printed.
Additional Sponsoring Agency: USSR. xondtat standartov, nor 1
ixiserital-ttykh priborov.
Zd.t S. V. ReshotIna, Tach. Ed.i X. A. Xondkatlyova.
VURPOSEt Tbe*e reports are intended for scientists. researchers
and engineers engaged In developing atandardso wessuraso and
gages for the various industries.
CO"RA'E:m Th volume contains 126 reports an standards of moaaurv-
Rent d Q:ntrol. The reports were prepared by scientists of
Institutes of the Komitat standartov, nor I i=oritollnykh
priborov~pri Sovate Kinistrov SSSR (Cocutlesion on Standards,
Measures, )and Measuring Instruments under the USSR Council or
kinisters . The participating Institutes &rot VVIIN -
Vmeaoyuznyy nauchno-lesiedovatellskly metrologil Imeni D.I.
Xen4oleyeva (All-Union SclwntlrLo Research Institute of Met-
rology Inent D.I..Mendaleyov) in Leningrad; Sverdlovsk branch
of this Institute, VXIIX - Voeooyuzny7 naubhno-i8aledovAtej-*kIy
Lastitut Koaltatik standartovq mar I lzaeritelfitykh priborov
(All-union scientific Research Institute of the Countlenion
on Standards, Measures, and Measuring Instruments), created
fraxi'KOXXIr - Rookovskly gasudarstvannyy 1nst1tut mar 1
Imerltal-ttrkh pr1borav (Moscow State lantItute of Measures
and Measuring Instruments) October 2, 2955; VNIIFTRI -
Vaesayu=yy nouchno-labledovatellakly Institut fIz1ko-tekhn1-
chaskikh I redlotakhnicheakLkh Lzmarenly (A22-Unlon 3clentlflc
Research Institute or Physicotechnical and Radio-*nglneerlng
Measurements) In Moscow; KhODUP - Kharlkovskly gonudarstvenn"
1natltut nor 1 1=erlt*2'nykh pr1barev (Kharlkov Stitt& Institute
of Neaxu"s and Measuring Inetrumans); and XGlMI? - Reveal-
birskiy Cosudarstvenyy Institut itor I linaeritelIny1dt priborov
(XavosibLrsk State Institute of Measures and Measuring Instru-
_-.jeqtA). go personalities are mentioned. There are no rerarences.
j!!EE!s, 3.1., and 1J.D. Zalmanzon (NODMP). Studying a Screw PeAr 14
IMn, O,s_ (KhaIMp). Measuring the Tooth Profile of Large-
a ter Reduction Gears 15
SL=Jdn, O.S.. and L-L-2-hinavich (IMOTRIP). Investigating In.
struments and Methods for Measuring Elements or Worm Gears 16
OmmolovskAys, Ye.P., an comparative
Rating of Probe and Contactless Gages for Measuring Surface
Finish 16
avyd v. Y.F_.F_u0cLqcnko, and T.S_J_Afi%tUaa__
a Mothod for Testing Surface Finlah Samples
and Instruments Car Surface Pinish Quality Control 11
&Zus1&xnkjZ_X_(L (VNIrK). Making Improved Surface FlMi4h Test
Swiss 18
(NOrMIP). Developing Methods and Means of
5 27
'7-'
i

SOV/120-5B-5-29/32
AUTHOR: Davydov, B. S.
TITLE~__Me_asurement of IM~Amplitudes of Mechanical Vibrations
(Izmereniye malykh amplitud mekhanicheskikh kolebaniy)
IURIODIUL: Pribory i tekhnika eksperimenta, 1958, Nr 5, P 107
(USSR)
ABSTRACT: The method of measurement was based on the principle of
stroboscopic interference. The stroboscope was driven by
the source of electrical oscillations and the strobotron,
type STN-l, Tras used as the source of light. The inter-
ference pattern was observed in a micro-interferometer of
the Linnik type which had the following characteristics:
diameter of the observation field 1.7 mm, linear ma-nifi-
cation of-the objective 7X-0.18 and the viewer magnifica-
tion of 1,15x. When the difference between the oscillation
frequencies of the vibrator and the strobotron is suitably
chosen, the interference pattern observed is displaced
relatively to the fixed visor. By counting the number ofL
fringeslit is possible to determine the amplitude of the
oscillations; the amplitude is A =-nXef/4 where n is
the niLnb.er of fringesand kii is the effective wavelength.
Card 1/2

. SOV/120-58-5-29/32
Measurement of Small Amplitudes of Mechanical Vibrations
It was found that the amplitude could be determined with
an error of not more than 5%. The paper contains 1 table
and 4 references; 2 of the references are English -and 2
are Soviet.
ASSOCIATION: Vsesoyuznyy nauchno-issledovatellskiy institut Komiteta
standartov, mer i izmeritellnylch priborov (The All-Union
Scientific Research Institute of the Oommittee of Standards,
Measures and Measuring Instruments)
SUBMITTED: September 7, 1957.
Card 2/2

DAVTDOV B KRTHKIN, I.K., insh., nouchuyy red.; RESMINA, 15J.9
red.izd-va; NATVBTBVI, I.Te., takhn.red.
Elrundamentals of the feeler method for determining the roughness
of surfaces) Oanovy shchupovogo metoda opredeleniia sherokho-
vatosti poverkhnoe'vi. Moskva. Gos.izd-vo standertov *Standartgis".
1959. 167 P. (MM 13:5)
(Sarfaces (Technology)--Testing)

p
PHASS I BOOK VXAITATIOX SOT/sm
7: Aks6onlys mock 333R. Institut mashinovedentys. woolsolys. po tokhnol.-
611 moshinestrovenlys. 3ominar po kschostwu pavorkhmeti
smetwetwe poverkbnosti detalor mashin, abornIk 4. Tokhoologichoaki"
faktory obrabotkI. Patrol ya I pribory. xxsplu2t&toioanrj2 3707-
cr
k
t
stva pover
hos
nogo mloym
3urftao quality of Phohine Parta, Col-
leation'of Articles. No. 4. Processing rectors "In M&Ohinlr,3.
.
Jostr6lo
and In
tru
ent
O
e
t1
l P
tl
f th
S
-
s
m
&.
r&
ma
e
ropor
es o
p
urXian
a
Layer) -Wasow, Xxd-vo AN SM. 1959. 291 p. (Seriess Ites Tru*)
ts. &Up inserted. 3.200 copies Printed.
Sponsarins Agency: Akadenlys neck SM. Znmtttut washinovedonijo..
Resp; Id.s P.Yo. D'yachonkc, Pr~fossorj Ed. or ftblIshing Hansel
..G.B. Gorshkovs Tech. Zd.z T.P. Polonova.
rt1RPqMs ThID collection or articles in Intended for technical
personnel concerned with the quality of surface fWabas of
machine
,
a.
-
,
Ciok""i
Thii
oollootion or articles deals with woble" of a
AwUghnssa and the *treat of surface roughness on the wear and
strength Of machine parts. Among the topics - discussed are the do-
wo2opment of international standards for surface roughness, the
offset Of Gutting foods and cutting-tool vibration an the surface
roughness of machined partd, the offect'of lay airectIon on the
meow Or plane friction surfaces. rathoda and 1=:z=_-tc for
measuring surface roughness. and the processing or promograza
of finished wwraces. go personalities are continued. Reforsawas
ollcw~ssvsrsl of tho~artlalsp_
Nor. S.F. Quallty W Wear of Motion Surfaces 41
Dal_eglonko, F.T. -1ffeet of lay Direction an the Wear of- Plane

Use of.tk* Cutting Process for Increasing the Pa-
w
44m
of Machine Parts
ak
t 11*11 ?.To. blya4honkc, and O.To. Kestoor. Solld,Lubri-
g
-
o ~-~tlou 79
Papshev. D. Effect or Surface-Layer quallty an Fatigue Strength 85
Xaslygm, N.Y. Some Problems of the Formation of the Surface Layer 93
Thocry of the VorkIng Cycle In Grinding as the Beals
Z2- 0-4
for JAPTVV&" Machining Qual.1ty 96
_, A.A. Effect of Process Pactors In Orinding an the Sur-
J3&MLaz1
_
ram* r
4 Surfaces In Precision and
of Machine
of Steel 12T
DobychIna.-A.P. Instrument fOZ D~t*rmlhlng the Surface *049bn*26
or CuMag T ate 137
vn, '-A. Thermal Phenomena in the Grinding of quwwb-
]
_M
142
'p
tg
142
GrosinalaYs Z.r. Surface Hardening Of 00tala by Sell burnishing *8
Hisnevlah'L AAr. On the Problem of Surface Roughness or mohined
Trostor-AmaLm torts

68
Davyd*v. B.S. Simple 3-face-Roughness Indicator

'U
A.P. photoelectric Method of Recording Surface ftfter 5
Urtanh,11
.
0
2
'
jj
7
-
libr-Ue Inductlon-Type, Profilorrap~-Profl,lcw@6.
a
or
177
Electric Circuit of the "KslIbr-VZ1' ft-~fllogrsph-rro

Truton-, V.A XXX-2 Optic omechanlea I Profilograph
Tl*hohonko, O.A. *Visual* Device for Measuring the Roughness of
_TZF0-UndrSW0fwd*s 199
'

DAVTDOV, B.S.- KARTASHEVA, A.S.
-feelor-type instruments for determining surface rougbness.
Standartizatsiia -24 no.8:40~42 Ag 160. (MIRA 13:9)
(Surfaces (Teabnology)--Testing)

j sli'2VkIO00101110201020
t q000 A1611A130
ALMHORS i Davydov, BOS.;. Kartasheva, A.N.
-Trmi Particular points of the now standard for feeler instruments for de-
termination of surface roughness in the machine industry
FERIODICALs Vestnik mashinostroyeniya, no. ii, 1960, 80 - 81
TEXTs Komitet standartov, mer i izmeritellnykh priborov pri Sovete Minis-
trov SSSR (The Committee of Standards, Measures and Measuring Instruments at:the
Council of Ministers of the USSR) ]has approved a new standard - "Feeler Instrui
ments for Determination of Surface Roughness. Types. Basic Parameters and Ac-
curacy Norms". It complemqnts the ro7 2789-59 (GOST 2789-59) standard for sur-
face-roughness, includes the basic Ra parameter of profilometers and profilo-
graphs, and standardizes the roughness measurements in the industry regardless of
the design.features of instruments. It is the-first Soviet standard for such in-
struments, in claimed to be the most complete of analogous standards existing in
other countries, and contains some new conceptions and designations needing ex-
planation. The profilometers are subdivided into three types - of the highest
accuracy, rt-7 (P-I)i medium aocUracy, TT-10 (P-10); and limited accuracy, TT-16
Card 1/4

25100
S/122/60/000/011/020/020
Particular points of the new standard for.... A161/P.130
(P-16). The accuracy is characterized by "peredatochnoye otnoshenAye" (ratio),
i.e., the kelation. of Ra reading on the scale in microns to set linear needle
displacement (also expressed through Ra in microns). The relative error of-the
profilometer ratio is determined by-the formula
% R - R'
~n - 100%,
Ra
where 11a are readings In mioronsi and R' the mean arithmetical value of the
a
needle displacement setting. The ratio error is determined by metlic-A-s specified
in the 11148-5911 instructions, with the use of a vibrator imparting sinusoidal'os-
cillations to the needle. This eliminates the component errors from the measur-
ing effort P and needle tip radius r. The P-7 profilometers have Sn 4 t 7% and
are designed nearly exlusively for -research, expert decisions, and profilometers
of designs analogous with the knoi4n profilometer of the "Kalibr" Plant and Vse-
soyuznyy elektratekhnichebkiy institut (All-Union Electrotechnical Institute) that
belong -to thi s group. The P- 10 with S n A~ t 10% are for both 3. aboratory and shop
use; they are less complex and costly, of less weight and size. The, major mass
of piezoelectric and induction profilameters belongs to them. Th6 simplest P-16
8 < t 16%) iriclude instruments that are analogous with the latest~~-4 (P-0)
n
profilometers. The profilographs (being nearly exclusively laboratory instru-
card 2/4

25-00
S
012.~/60/000/011/020/020
Particular points of the new standard for.... A16l(AI30
~vided into two types _nr
mehts) are d -5 (PG-5) with ratio error En