SCIENTIFIC ABSTRACT PERVOZVANSKIY, A.A. - PERVUKHIN, F.S.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001240210002-9
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 2
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

24-11-19/31
AUTHORS: Yegiazarov, I. V., Kartvelishvili, N. A., Pervozvanskiy,A.A.
(Yerevan, Moscow, Leningrad)
TTTLE: On the influence of an air filter rubber hose during
simulating on models of an hydraulic shock.
(K vliyaniyu rezinovogo shlanga s vozdukhom pri modeli-
rovanii gidravlicheskogo udara).
PERIODICAL: Izvestiya Akademii Nauk SSSR, Otdeleniye Tekhnicheskikh
Nauk, 1957, No.11, pp.16-0-166 (USSR)
ABSTRACT: In earlier work published by one of the authors (Refs.1
and 2) the theory was evolved of hydraulic simulation on
models of non-steady state movements inside pressure
systems. Four similarity criteria were derived for the
general case and two criteria for the conditions of
hydraulic impact, i.e. for the ordinary case of dis-
regarding the friction and the ratio of the speed of flow
to the speed of the shock wave as compared to unity.
From the obtained relations and from the condition that
all the time constants should be equal in the nature and
in the model, it follows that the geometrical scale
OL 10 to 20, i.e. the speed of the shock wave should
bg considerably slower in the model than in the natural
Card 1/3 object. This condition imposes the necessity of simulating

AUTHORs PERVOZVAkS~k
~IY~A.A. PA - 2565
TITLEt Concerning V.L.Inosov's Paper. (Zamechaniya k statlye V.L.
Inosova, Russian)
PERIODICALs Avtomatika i Telemekhanika, 1957, Vol 18, fir 3, pp 282 - 283
(U.S.S.R.)
Received, 4 / 1957 Reviewedt 6 / 1957
ABSTRACT: The conditions suggested by V.L. 1nosov in Avtomatika i Tele-
mekhanika, 1954, Vol 15, Nr 4 concerning the stability of a
system of any degree of complicatedness could be widely
applied for the projecting Qf regulations only for the reason
that hitherto there exists no computation method for the
static stability limit of complicated energy systems. The
following three main errors in the work by Inosov are enumerat-
tedi As the first point especially the physical importance
of the function I occuring in the presence of an essential
asymmetry in the coefficients C is stressed, and it is shown
that the theorems for the investigation of the stability of
the energy systems given in the first part of the work are
not applicable in the case of automatic controls existing
therein.
In point 2 it is stated that Inosov identifies the conditions
for the positive amount of energy dispersion on the occasion
Card 1/2 of forced oscillations with the condition for a positive

4- 58
AUThOI?: A.A. (Leningrad)
TITLE: Aj,, A;-, pro--,,ciuwtte ~Ietlhod of St udy r,!~ 301 L~Ac I',,'
Subject to Ra-r~dom 1~~rturbau-i-ns (i-ribli:.hennyy a
i!~sled)-,,-anija --vtol,:o1eta~el:nyi~h siste:-i pri
.3lichay-nykh vezdoystvay)
P&iI-JDI,~A,,: Izvesti
ya Ai~,-,(iem,,1 I~aul: 3.33h, utdel,,nifo
ilau-j~ . i I~i 5, pp 14-24(USSR)
ABSTRACZ: The wor"r-I is an exten:,,iDn of' wid Barr---t,., w:) on
b,
L Li 7 C- -a T
T, e -1~~l
lor i:--u and nDniinear iinks o4' s r
uc;~ s s e ajed,
Vari)-i- trpes c f n, :t nDise
s,,-,ectra are considered ~istribut,.-)r v;., i :) i e ,
0 1v i t I I u P,) e r 3 r 10 e r e q u - n c y lbound,~ 3--cial con-
is :-iven -.0 rt--al (-~,Dunded)
,!;UC~t LIS nutow,~ , i (vj i t :I- Da"Kia:,h),
sj-3tems
and b 1 oc'.-c 4 i L; C i I I - 'i -- C- LD ~- J' 1'
L . r :--- .
T'~,~ tran3fer -)f
'th certa'n typical nonlinearities (iical
relay vvith a.. iil,~,o with b,)~-Lnded
I,r.-ur a7a.lifi.,rs) ar(~ in a z~!,vrnient for-. Tn e
I -, c ',- -) ~' s b I n- t a b u I ~-, i~ e d f u r, c- t -, n s i r, , i i y c, t r,2 ~, S e d
Card 1/2 ~r a,,, ) -~,- r t, fa,, n p,-t r t-.1 - a Iy i "a' 0 r tall L f unc t V,~ ry

An A i-', i i ,i zn z; h. I ) f ~3 i, ~l 'I - . i f - 3 - C a co -,7
W!
t o Ran d 3:2 P. ~ f t u, I i s
~tll scalos) arc, .,i,;,-n. Tfte dire ial:,.!,y '~:ar
4' --onerai soiution3 by 1-~--actiev. az-,d
~Dthers, --ublis~ied in the Rus,-.ian iiterlatare on
a u t -D -.L~ *c ic control theDry. There are G fifurc.-) . I ",able",
- , -,; c~--s, c f wn ~ ch are Sov~- et and 4
r-i
,IT I.
'3LTB~.:I'T"T N C) r 19W
1. Oscillaticrff-mathematiaol allalysis 2. Apprcximat,5 corputa-
Card 212

MVOZVANMY, A.A.
Investigation of frequency"r-re,mlation dynamics by means of an
electrodynamic model (EDN). Hauch.dokl.vyB.shkoly; energ.
no.3:193-202 '58. (MIRA 12:1)
1. Rekomendovano InstitL i elektromekhaniki AN =M.
(Blectric power distrlbution--NodelB)

5')-l -`7/;, 6
AUTHOR: Pervozvanskiy, A. A. (Leningrad)
TITI,T,,:__!9Tf_ect of an External Varjing Slow A,;tion on Ortho-Vibrating
Systems (Avtokolebatel'nyye sistemy pri nalichii medlenno
menyayushchilchsya vneshnikh vozd.eyptviy)
PERIODICAL: Izvestiya A-kademii nauk SSSR, Ot-deloniye teklinicheskikh
nauk, Idekhanika i mashinostroyeniye, 1959, N'r 1, PP 158-161
(USSR)
A13STRACT: A method of calculat,on of the dynamic properties of an
artho-vibratinG system being affected by an external -4arying
slow action is described. It is as--umed that the latter can
be defined as a function of time. The dynamic equation of the
vibrating sysLoin with one iion-linoar torm can be expressed
as Eo.(l), where Q,(p), P(p) and N(p) - linear differen-
tial operators, z - reGular normal process. It is also
assumed that an ortho-vibration exists when z = 0 and that
z(t) represents a process with the matiaematical expectation
equal to 0 with the probability of being variable equal to
1 (Eq.(2), where T - period of ortho-vibration'). The solu-
tion 0f Eq.(l) can be defined as a periodic suia x, y, and
of slowly varying components x 21 Y2 (Eq.(3)). Both compon-
Card 1/6 ents represent a function of ttime. It is further assumed

;,)7/17~~- 5 ~ - 1 -1---Y 7/ ~~
Effc~t of a-n
tilaL
X1 =
terfa
External Varying Slow Acti~,n
0
Eq.(i) sat.Lsfies a condition
A sin wt (Eq.(4) and y can
of a Foii-rier -acries:
y = q O(Al X2) +- ql~A,
on Ortho-Vibrat~_n7 Systems
-
of nari:ionic linearity. 'L-.e,-.
be expressed as the first
x,,) x,
The periodic components can be ta-:ei as Eq.(15), or, fir -,_e
slow variatjD-1s, the corarionenb:3 Zq.(6). As the am;A.".ude A
-i s changing slowly, its equation will tai~e a f orm ~,o.
,7!ii-1ch can be con.3idered as a relaulorsiaip of the ampi' dude A
L
and a slow varyinc, component x M.3). This Can be ex-
CD 2
i-,ressed as Eq.(-)). Then thle transipission c,)efficien~L
qO (A, x2) will be expressed by x2 only and Eq.(6) wiii ~.a,:e
the form Eq.(10). In order to find a solutlon for Ea 'A10) i-~
is necessary to inL;roduce Oq 0/0A a 0 at x2 = 0 so b'kat
the a:n!_14 tude
Eq.(11) can be found (A siiould be substituted b
Card 2/6

Effect of an Eyti=.al Var .'i zrir- Slow Act, ion or. Ortiio-V'~I)raL
o.,' ortlio-v--bration A 0 The ii-near statistical equat.--),,
a:~T,roacniri.~-, com.;-one:-)t --?n be based on tiie nor:L~il
x
p
x
re c meai, deviati--in of x-, Then Eqs. (1 an,~ 0
can be ex~,ressed for the matheinati3al ex~,ression of x, 7 0
A,; L11i !xaj-,i;le an accelerometric system is considered (Fig.!,
where 1 - excitation coil, 2 - magnet, - electronic corz-:,u--
ator, 4 - swiuches, 5 - power source). The system is
a(,piied for 7measuring of acceleration of a flying Object
ai,fected by the atmospheric turbulence, The dynamic oropert-
4-es of the system can be expressed as E,. -.(14), -.vh!~re x -
an~71e of inclination of the e;xitation. coil, z - effectivc!
accelerati-on. Ti - damping constant of coil, Tk rlectr-'C
c,-,nstant of 2 k-
Coil T2 inert constant of co-JI, kj
.arc I

.: '0V/179-5')-1-
-t of an Externai Varying Siow Action -)a Ortho-Vibraoir-,,-,, 37stei::
- transmission ratios. The non-ii7nea-r cnai.-ELcteristic f ~x'i
of t~.e eiectronic comimitator i.,-; stLo-~vn -,ri Fig..z. T r. v,.,I
of w and A for z = 0 are ca-Loulated as:
r 4k, a
A AO = I
bc ad
t,.e :i,,~cel-ral.i)n due to
z(-'U-) - hv(t)
v,~locity v,t) found be c
s La r'-Ilndom ~u-iction (Ref.4). 1t, CaLl U'~ CiC2ji-eU 3 Li COfr(?--
a~lon f'ui,ct,,-)ri RV(T) for -r,