JPRS ID: 8200 TRANSLATIONS ON USSR SCIENCE AND TECHNOLOGY PHYSICAL SCIENCES AND TECHNOLOGY

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PHYSICAL SCIENCES AND TECHNOLOGY
4 JANUARY i979 CFOUO L179~ i OF i

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rn~ o~r~ciN~. us~ ~N~Y
JP125 L/8~00
4 January 1979
i
TRANSLATIONS ON USS R SCIENCE AND TECHNOLOGY
PHYSICAL SCIENCES AND TECHNOL~JGY
CFOUO 1/79)
U. S. JOINT PU6LICATIONS RESEARCH S~RVICE
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NU�rc
,I!'(t5 publiC~ti~n~ c~r~t~in information prim~rily fr.om foreign
newgp~pera, pc~rindic~ls ~nd bodk~, bur
y,
~
? ' , ~
; y...~ .ri ~ j~4
, ~~~~M1 ~ . a~' � ' � 't'~~,~'i
~~~�_5i~~:~,.`'=';~`.~a'+ ..~r::~~:,~
Figure l. Overall View of Ye5-5066 Interchang~eable Magnetic
Disk ~tore _
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t'dlt ~!~'1~ICIA1, U~L ONLY
he int~rchangeabla digk pecketi r.onsiatm o� 12 dieks and oorresponde oom-
p1e~Qly tio tiha r~qt~tr~m~ntg oP ~.nternatiional standard~. The cliek gur�ace~
hav~ a ferrolacc{uer cda~ing.
7'he floaeing elem~nt hf tihe magnetic he~ds i.s made of hard ceramic a11oy.
7'he carriage block witih m~gnetic heads is c1riven by a linear motor wh3eh
provides the required drive spe~d. Zti ha~ a long service life, is resistanti
to the effects of inrraas~d e~.imatiic factors and is eimple tio maintia3n.
The electronic part o~ the store ie ba~ed on integrated ~3.zeui~s and digital
components.
Specif3cations
Capacity of tt singlQ in~erohangeable
disk pack~t 100 I~ytes
Nutnber o� working surfaces in a packe~ 19
Number of surfaces for servo drive
. control 1
Number of tracks on each surface 911
Method of. recording information three-frequency
Number of heAds 20
Tfine of finding the cylinder:
mi.nimum , 10 ms
maximum 55 ms
averaqe 33 ms
Average time of acaess to information not more than 41 ms
Dfsk rotational speed 3,600 rpm
Data diatzibution arbitrary
Data transmission speed 806 I~bytes/s
Time of chanqing pa~ket 1.5 min
Principle of checking information
recording ~ime selection
Power supply 380/22d V, 50 Hz
Consumed power not more than 2.5 k~'�A
Overall dimensions 1,131 x 671 x 1,135 nan
COPYRIGHT: Izdatol'stvo "Statistika", 1977
� 6521
CSO: 8144 /340
29
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~ ~Ott OI~~tCtAt, US~: ONLY
EI,ECTI~ONICS AND ~LECTIZtCAL ~NQINEEAtNG
UDC 621.396.67
CAI.CI)LATING THE CHARACTER2STICS OF ANZ'ENNAS IN TEI~ FORM OF LOAD~ED ~YS
S~3PENDED LOW AHOVE THE EAATH WITH DAMPED P~RIODICITY
Unknown RADIOTE1tEiNiKA in Ruseian Vol 33 No 9 1978 siqnea to preas 7 Deo 77
pp 57-60
(Article by 0. N. Tereshin, A. N. Yuvko and N. 8. Borovik~
(Text) The extensive use of wire antennas (the 8everedge antenna, the
rhombic antenna and so on, t1~ was determined by their structural sitrQlicity
ar?d low coet. The disadvi?ntages of a rhombic antenna are significant heiqht
of suspeneian above the earth (h ~ i~/4), which requires rather conplex
auppc~rt atructures, and their low efficiency. The heiqht of 8uspendinq a
Bev~eredge antenna is insic~r?ificant (usually hundredths af a wdvelength),
but the anQlification factor is low in this case. Therefore, problems of �
constructing antennag witli low height of suapeneion above the eartih and
high efficiency are very �rgenC. In realizinq antaeaae suspended low on
band lines, they may be urs4d~ex~ensively in the UHF range.
The problem of developinq a method of calculatinq antennas in tha form of
a system of parallel wires with reactive loads periodically coru~ected to
them is solved below. An antenn~ in the form of a system of equidistant .
wires 1(Figure 1) to which the reactiive loads 2 are connected is taken as
the basis in the analysis. The anteruia array is suspended ~t a height of
h~~ ~ above an ideally conducting earth 3�
Z t ~
t
~ ~ ~
o-=
o-
~
v
- - - y
~
c p
,x r J
Figure 1
30
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1~~)It t11~ I~ IG I AL it;si. C1Nl,Y
L~~ u~ cdnaid~r th~e m~in x~i~~ion~ whi~h iink th~ geom~~~y o~ ~h~ oy~e~m ~nd
~he valv~ o� ~h~ ~oad~ tio ~he rediatiion ~i~id pagam~t~r~. t~~ u~ a~gume in
~naiyainy thi~ r~i~tion~hip tha~ ~h~ ~~.~id betiween the gysrem o~ wir~e and
ar? id~ai~y condu~ting ~arCh (in zon~ ii, n< z G h~ ~iqure ig Cwo-~in?~n-
~inn~i in n~~urn, i.e., ~he ~ondition ~ x~ d i~ tuifi~le~ for ali ~t~
~ompondnt~. t.~ti u~ x~gum~ thd~ thi.~ ~ame hypoeh~~~s i~ valid for ~e rddia-
tiion fi~1d in an ~xtiernai haif-gpaca (zone i, z~ h).
With regerfl to rh~ ~~~wn~eion~ made, we wri~p tih~ radi~~ion fi~~d i~ ~he
form
fJ,~~ = /~~e0f~-~~~vr~ ~1~
,~y~ ~ _ !.Q ~~~vt~-n~~or~
~q Ai~v i~-~~of~ (3)
where A1 is the t?mplltude coeffi.cient~
p~-ncosO--Intyin0; q;--irncos8~-nsiu0;
m is retardation= n= m- kl~ ~ is the angle between plane XOY an8 the
direction of tha r~diation wave propaqation= F 1 is the dielactric permea-
bility of the rc~dium 2= and k~, is the pr~~agation constant in the medium i.
Being given the fteid in th~ form of (1)-(3) permits one to obtain a high
directional ac~ion coeffirieat with low dampinq of the surface Wave I~~�
't'his is caused by the fact that the wave decreases aealcly in a direction
perpendicular to the direction o� its propagation and providas a high co-
phasal surface on the end of the antenna. trbreover, because of the small-
ness of daag~inq of the radiation wav~e, its enerqy is totally emitted inta
free apace. The validity of the indicated hypothesis was confirmed by
theoretical and experisnentai checks in a nim~ber of inveatiqations, for
example, (2, 3j.
Ir? zone iI, let us be qiven the field in the form of the stmi of tWO Mavesi
the surface waves
~ N~s = Bch (pz)cor; (S)
E~? a - ~Bsh (pz)cor; (6)
~
31
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~ ~
t
FOR bFFICIAL U3B ONLY
E~: Bch (p,t)eer ~~I
~wher~ ~e ths diaiectrio permeabiiitiy o! tha medium it) ar~d o! the regu-
lar aav~ o! the band 11r~e:
tlt~=Ce-~R,r C6)
L~~~~~
~Ce~iR~r, ~9)
and kZ io tha propaqstiion eon8tant in tho madi~nn it.
, Lat ua ~onsider a w~at~n of boundary conditiona for the mo~el aham 3n
Fiqnra 1. ~'he bounda~ryy eondition of t.he foilowit~q foren ghovid be fuifiile8
an an ideally c~anduetinq earth
a~ z~4. (lo)
As can be ~een lrom tS)-(9), the fia18 ia hal!-apeca i= satisfi+a~ th~8
conditian.
i~t us write the bo~ndasy conditions for h. Tha foilawinq boundary coes-
ditioru rhould be fulfiiled on s syste~n o! wires aith reaati~re loade oonnaated
to th~m (at Tl T~ ~ fi~. Tl/ZT~T t h~ T/7~' )(4i :
E~i ~ E,s at z*~ h~ tii)
T F,~
Z� g T~ ~~"=N,~~ at h~ ti~)
where T and T1 are the p~rioda of the se~ura. if ona takes ~2) and (6)
into accovnt, c~ondition ill) ase~e the forn
~
~ B'~ e sb~jA~ ' ~13)
8y eubatitutinq (i), ~Z), tS) and (8) into (lZ) with raqard to (13), ~e ~iad
~ T 1 ~
~~s - ~t~ ~ I- tlh(pA) - A~ ~-ts~f-~7 ~ ~143
32
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Rb gind a high amplification fao~or of tiha antnnna, iti i� naca~sary? bhati ~ho
londr be pur~ly r~hctive~ i.e., ~;hati tih~ folioaing aondition ba fuigilled
Im P ~ o. ~15)
1--~tll~(Nh)--~ ~~~~~y~ar
~
Sab~titiv~l.ng into C14) wi~h regar~ to (i5) and asaianinq that
m cns 0~ kz; CIA~ ~ a-~ ~ P~ ~~s~ ~16)
we have
,Z T n~to3~9~�m~sln~8
" main9s~n(1h??tsin0~->ncosoan(ln~icnsul ~R ' (Z7)
- ch (1nh cas u) - cos ~;tm~~ iin o~
whera
x'
~ . .
,~,o .
...~t: . . . . .
4/8 ~ - .
4~ ~ ~ .
4~ . ~ .
r_=__.. - , ~
` -d - at Qy Qs ' ~ y~ . .
Fiqur@ 2
Since constzuation of a d~scharqe Wave antenna aircuit assumes purely redc-
tive load resistances, the equation which links the aativa po~~er fed to
half-space iI to the artive power departing to half-spaca i shouid be aalid,
i.e.,
A
L
Re S~~E.s -1- ~H~~ -I- Hf~~~~r=oclz - _Re Ey~N~~dy~s~, (18)
- ~ .
8y aub$titutinq (1), (2), t9), (5), (7)-(9) and (16~ into (18), we find
33
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m cns 0~- lix, (pna sin o-- an cos 0) !1 ~a~~tn cos~ 0-~ stn 20
anm sin~ 0- 1' sin 20, K~li~ (n~ cos~ 0-}- n~~ sin~ 0) (a~ -4- @~) ~ (~9)
~ m(nt tos! A-~ m'sln~ 0) h~~;n ~~n 1t ~ ~
ln
where L is ~he longth of the antienna.
, . ,
: . ~ ~
n
~
. . . _ az a~ ~s ae
m.
y ~ ~
� ~
. ~ 2 ! ~ Q6 Qg 0~
� ~
~ .
t70' JGO' J~10'
Figure 3
The derived aystem of formulas permits one to recomnencd the followinq order
of calculatinq the anteana:
;
1. The heiqht of sugpension h and the ratio between the amplitudes of the
power 8upply ~d ra8iation waves are determined accord3ng tio formulas (15),
(16) and (19) with reqard to the parameters of the given antenna radiatfon
pattern and length.
2. The required load distribu~ion function alonq the y-axis is calculated
by formula (1~).
The array of wires for parameters: m! i.lkl; B= 25�t h= 0.02 L= 1~_
T~ 0.11~ = u~d Tl � 0.025 ~(40 wires) was calculated by the derfved formulas.
The law of variation of the values of load resistances is shown in Figure 2.
. A mockup of the antenna in the form of a systea? of wires with reactive loads
connected to them (inductionless capacitors) w~s constructed for an experi-
mental check of the given method of calculati~n.
The results of the experimental check are presented in Figures 3 and 4: the
po~er radiation pattern in plane E on the calculated frequency is sho~m in
Figure 3, at the radiation pattern in plane H is shaam in Fiqure 3, b= and
the c'lependence of the antenaa input impedance on frequency is shawn in Fiqure
4.
34
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~OR OFF~'YCIAL U5E ONLY
RO R' ~~M
~ '
~ ~
~p ~ . X . ,
0
~ jJ (4 ~Si
Figure 4
Conclusions. The given method permits one to calculate the elec~riCai` and
gPOmetric parame~ers o� a system of wirea suspended 1ow abov~ the earth with
reactive loads connected to them by the given characteristics of the radia-
tion field.
The experimental check confirmed the correctness of the hypot~heses ~nade.
BIBLIOGRAPHY
l. Axzenberg, G. Z., "Korotkovolnovyye antenny" [Short-Wave Antennas],
~ Moscow, Svyaz', 1962.
2. Tereshin, 0. N. and V. G. Gofman, RADioTEKFIIdiKA, Vol. 24, No. 8, 1969.
3. Tereshin, 0. N. and V. M. Sedov, RADIOTEKE~iIKA, Vol. 24, Dio. 9, ~,969.
4. Tereshin, 0. N. and R. S. Azoyan, RADIOTEKHNIKA, Vol. 31, No. 1, 1976.
COPYRIGHT: Radiotekhnika, 1978
6521
CSO: 8144/348
~ 35
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't
i~Ott O~t~fC~AL U9L Ol~t.~Y
OLOPHY8IC8~ ASTRONOMY A~1n SPACE
t~C 532.593 .
PLAN~ INTERNAL WAVES ARISINCi IN A S'IRATIFIED fr2tJID DURING FI,OW AImUND A
SOURC~-DISCNARGE SYSTEM
Kiev GiDROt~KHAr1iK~? in Rueeian No 36 1977 gigned to presg 12 Fe1~ 76 pp 66n70
(Article by V. i. Nikishov and A. 5~tetsenko, instiCute of Nydrota~chanicts
of tih~ Ukrainian SSR Academy of Sciencee~
(Textj The plane problem of wav~e motions arieing in an ideal 8tratiiliad
fluid during uniform flow aroun8 a source and 83scharge of equal capacity
is investiqa~ed in linear poetulation. it ia assun~ed that the fiuid is
bounded on the top and bottom by solid wails and that the flow rate U coin-
ci8es with the posi~iv~e direction of axis Ox. Axie ~Y is d~irecteci verti-
cally upwar8 with the oriqin on the upper botu~dary. The source and disaharqa
are located at diatance h from tihe upper boundary snd the segrtnent cor~r?e~ting
them (with velue 2s? is parailei to axis Oxs a~ig ~Y P+~8S8s ~rough itg
middle (Fiqure 1).
Y~
. l
v
'T
Fiqure l. Location of Source and Discr,arqe in Flo~r
It is shown in [al that, ~lthouqh eimtlar problema are gtationary, they may
be $olved as nonatatfonary. Subsequent conversion to a stationary problem
can be aade by usinq the maximum conversion at t-s oo. Th~ last statea?ent,
as in [2l. is a~ade from physical concepts. Thus~ it is assusned in the in-
vestiqation that the output o! the source (aischerqe) is deperxlent on time
in the forin of a single Heaviside fu~nction H(t).
3b
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N'c~k ttr~t~'rrr~~, u;;t. nNt,Y
L~t um a~gwne th~ ur~di~tiurbad va.ua o~ den~l,~y 3~ 1n the form
po ~ hooe~~~? (1)
ahera~ ~~00 i~ ~he ~?alue ~g deneitiy near the upper boundnry.
Th~ lineerizad aquatiion~ of mo~ion hav~ the ~orm I2, 4~
~ -h ay = mH (t) 8 (y ~ h) I~ ~x a) 8 (x - a)j (2 )
~'`~"~a'`~'~dd~_~~' ~3I
Po ~ ar U vx vx ^ n~ f4 )
Po(y) ~
ae -1- ~ a~-~- ay Pg~ (5)
where u and v az~e the horizontal and vertical veloaity components= p i~ ths
inetantaneous difference between the tatal density and /~p(6)~ p is,the
instantane~us di~ference between the totai and hydroatatic pres~uret m ig
the output of the source (diacharqe)t and ~ is a Dirac delta-~unat3on.
By introducinq oper~tor D= a/ a t+ U( a/ a x) a~nd the typical saales of
length Y. (the distaace between the boundaries), veixity U and duts3ty ~00~
ae find the equation for the vertical velocity cou~onent v in dimensioniaea
v~riabiee:
j72 ~ ~ ~1 ~U ~ - aD= a
~ vy
(6)
~ ~ {QH I8 (x a) a ~x - 4~l fa~ c~ + n~ Qa cy + h)l),
Where ~ s 9L/~ and Q= m/UL.
Applyinq the Iaplaee transfonn by t and the Fourier transform by x to (6)
v(k~ y, s) t'~~ j e~~ti (x, y~ tj ( 7)
_M
ne find the foliowinq equation for lunction v(k, y, s) (ae ahall subsequently
o~alt the syrtibol )
37
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~ Q ~ (ks , ~,o)v ~ sQ sin ka (8' (,i? h) - oB~Y -1- h)~~ ~e)
wnexa ~i ~ Ak~/ ~8 + ik1 a.
2he boundary conditions are~ ~
v=0 ee y=0 N y~-1. t9)
For convenience let ug ir~troduce tunctiion a such that
~~Q~~ ~Q1Q. (10)
/
Then from (8), for tihe value of G, we find tihe equation
~-c~-(k'-~,o)G~ i sinkubV-;�h) (11)
With bourxlary conditions
G~0 ati y~0 y~-t. (ia)
Solution of equntion (11) With boundasy conditions ~12) has the form
G(y)- ~`sinka ~tv+~?t sh M~~y`hr~y,~,h~ sh r~1t�rh ~~y~hl~I~ I13)
s MshM C ~ \ /
.
~ where
M' Y ~ ~'k=-~,cr.
Knawing function G, from (10) one can finc] the expression for the deviation
of the isopycnic lines from the position of equilibriwn F,(k, y, s), wt?ich
is determined from the equation
D~ = v. (14)
Thus, from (10) and (14) ~re find
38
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~Ott d~~ICtAL U~~ ONLY
dfY~~l _ -
~ U~ S) sfn ka ep {~11 si~n A~ ~h ,1t (1 ~ U /1
~i ~ (15 )
--MshM(~ ~I-U~A)-~-~vshM?~' "'h" ~.~'~..}i.ti N~~~~_~I.~.
2n the compiex domain k, function ~ has cheractieristiic f~atiurea in tihe form
o� polea which arr0 detiermined from the equati.on
M ~ tnn (16)
or
' (16s)
4-}- ka - 7~,~ a~~ - n~l~
where n tl, t2, ~3,
Fbr convenience let us introduce w~ e- Y~ n~~ 2- 6 2/4, ahere
~~~~1G, ar~d let ua consider two cases.
1. w~~ 0. in this case all polea are purely ime~ginary and are represet~ted
in the form
s
k = ~ Iyn - is ,x-~ . (17 )
n
2. t~ n~ 0. For small positive values of s, tha poles are desaribe~} by the
expression
k~ t'wn-~'1 xzs-I-~(ss)� (18)
~n
By using the inverse Fourier transform and the lfmitinq theorem for the
Iaplace transform, we find
�
~~x. y) ~ ~~k~ ~o S~ ~x~ y? s) dk. (19 )
Let c.: n~ 0 at n a N and cJ n~ 0 at n= N+ 1. T'here will then be N poles
on the real axis and bypass of them i$ selected with reqard to expression
(18) (Fiqure 2). Makinq use of the fanchy theorem and the Jordan l~naa,
we find the folloaing for x~ as
39
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;
~ F�c~~ c1~~rtc,rnr~ tttit~; t1N1,Y
N aln t~ e ..y~x ah yna
~ ~x~ ~ ~ 2An sitt otnx ' A~B ys-' ~ (20)
M ~
whara
AR N Q~ '~y~~~ (-1)" [nn sin nn (1-}~ y-- h) - nn sign (y h) X
X sinnn(1-~J~~-IcU-I-asinnrc~~l-N- ~--I~-hhisinnrc ~-h ~v-I-l~~ .
Vndamped M~:~ve motion, which ie determ3ned by the real poles o~ the eubinte-
gral funation, does not occur if w n~ 0 or
U)Ul~ (21)
~ o
n 4
0
2f t1N~.l ~ U~ Up, whera ~ n~~-- undamped wave motiion is formed
from N waves.
This result is found according to (3~.
0
. , K
Figure 2. inteqra~ion Contour ia Complex Plgne K
The pattern of motion deacribed above mny be explained in the followinq
manner. The system a stratified me8iwa located between solid boundaries ~
has a set of natural oscillations. When disturbances with hiqh velocfty
(U ~ U1) pass through this meditan, the system is unable to become excitedt �
if the velocity of motion of the disturbances is sufficiently small (U ~ U1),
the system is excited asd we obtain undamped wave motion as a reault.
40 E
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~dtt O~F~CIAL USE: ONI~Y _
� ~'QI~ ~ '
J
i ~ V
p ?
:7 ~ yft p
1J
Figure 3. Dependence of osciilatiion Ampli~ude on x at Fixad Dta-
teu~ca 8etaeen CharaCtieristics ( 0( ~ 0.046455) : 1--
y ~ -0.6? 2 y ~ -0.4j 3 y ~ -0.2
The aecond sum in (2) describes the locai effects in the viainity ot tha
char~cteri9tice which are determined by the imaginary polas and whioh dre
rapidly daniped with an inrreaee of x.
a~
~ J
~ �
i I - ~ !1
~ ,
U ~ 1? ~ f 7 9
~ 1 ~ .
J ~
4
�s
Figure 4. Dependence of Osciilation Amplitude on x at Different
Distances Between Characterietica: 1-- y~ 0.4,
Di = 0.01562= 2-- y@-0.4, 0( = 0.046455i 3-- y�
~ -0.4, o( ~ 0.096651
~t is knoam that unlimited flow of a uniform fluid around e source-discharqe
system is equivalEnt to flaw around an oval. Let us assume, as in (2~, Lhat
this is also valid in the given case.
Being given the half-width of body R, elonqation d and incident flo~t velocit~?
U, the values of m and a ran be found by the formulas given in (1~.
Ooncrete calculations were carried out with the following values nf the
parameters: h= 0.7, y a-0.2, -0.4, -0.5 and -0.6= ~X = 0.0156, 0.0465
and 0.0966 (which corresponds to d= 2, 5 ana 10)= 6 Q 0.25j and 196.
7'he derived functions of ~(x) are presented in Fiqures 3, 4 and 5.
Zt is obvious from the figures that the wave pattern varies asymmetrically
along Ox. This is mcre clearly expressed in Figure 4. It is obvious from
this smne fiqure that the value of as in [3~, is stronqly dependent on
the value of Q(s the oscillation amplitude increases as elongation in-
creases.
41
FOR OFFICIAL USE ONLY
APPROVED FOR RELEASE: 2007/02/08: CIA-RDP82-00850R000100010007-2

APPROVED FOR RELEASE: 2007/02108: CIA-RDP82-00850R000100010007-2
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