. .-, q A - ; I , 11
. ~li a Y
I ME19 a
L - I- 1 1-2 L4 n
e,p, - - , , ,
jr-)v
rl-" -- I I-.1, - ~
li.-- - -,
b 19
- - ~ - ~ -1-1 1- - f ~'. __ ~ "t 's ac c MITIt . A PU-
-- - - -- - - -.. - - - - - -~ -4x, -,I -.n -:z -I izzt -I Mal,
I : I :
AVEN, O.A.; DVORETSKIY, V.M.; DOMANITSKIY, S.M.; ZALMANWN, L.A.;
KRASSOV, I.M.; KRUG, Ye.K.; TALI, A.A.; KJ1OKJ1DDV, V.A.;
BULGAKOV, A.A.; DEMIDENKO, Ye.D.; BERNSHTEYN, S.I.;,AM
S.V.; LERNER, A.Ya.; PEYEROV, M.V.; PERELIMAN, I.I. FITSSERI
CHELYUSTKIN, A.B.; ZHOZHIKASHVILI, V.A.; 1LIIN', V.A.;
AGHhN, D.I.; GUSHCHIN., Yu.V.; KATYS, G.P.; MELITTSER, L.V.;
PAqKHOMENKO, P.P.; MIKHAYLOV, N.N.; FITSNER, L.N.; PARKHOMENKO,
P.P.; ROZENBLAT, M.A.; SOTSKOV, B.S.; VASILIYEVA, N.P.; PRANGISHVILI,
I.V.; POLONNIKOV, D.Ye.; VOROBIYEVA, T.M.; DEKABRUN, I.Ye.
Work on the development of systems and principles of automatic
control at the Institute of Automatic and Remote Control
during 1939-1964. Avtom. i telem. 25 no. 6007-851 Je 164.
(MIRA 17:7)
ACCESSION NR: AP4041463 SIO 103/64/m/oWoesi /0866
AUTHOR; Yerne yanov, S. V.; Taran, V. A. (Xwftw)
TITL~.-, Stabilizing' variable -structure automatic -control system by inertial 7
units th a variable time constant
SOURC~: Avtornatika i telernekhanika., v. 25, no. 6, 1964, 861-686
TOPIC TAGS: automatic control, automatic control theory, 'Variable structure
automatic control
ABSTRACT: In the authors' previous works (referenced in the article), it was
shown that instead of using an error-signal derivative, the error signal may be
transformed by an inertial (relaxation) unit, the time constant T of the unit being
limited by stability and trans iont-response conditions, Shortening the time
constant makes the system more sensitive to the variation of parameters of the
correcting units. The limitations imposed on T can be alleviated by step-changing
CUM I /Z
;ACCESSION NR: AP4041463
the transfer factor of the inertial unit simultaneously with changing the system
structure. In the present article, another. correction method is suggested for
desensitizing an automatic -control system. This method involves a step-changing
of the time constant T of the inertial unit. The dynamics of a second-order free-
migrating system is investigated.' The domain of existence and the equation of
motion of the sliding mode are considered, as well as conditions of stability and
aperiodic motion. The stop -time -constant method is recommended for the case
when I - A T > 0 (with high values of A ) Is the f undamental limitation. For the
general case$ a switching of both the gain and the inarti&l-unit time constant is
recommended. Orig. art. has: 3 figures and 34 formulas.
ASSOCIATION: none
'SUBAUTTED: 00 ENCL: 00
'!SUB CODE.- DP,. 1E NO REF SOV; 003 OTHER! 000
C.,d 212
AOCESSION NR: AP4019965 S/0020/64/154/()06/1294/1296
Utkint-
AUTHORS: Petrov, B.N. (Academician); Yemql'yanov, S.V.;
;TITLE: Principle for designing invariant automatic control systems
with variable structure
;SOUROB: AN SSSR, Doklady*, v. 154, no. 6, 1964, 1294-1296
"TOPIC TAGS: automatic oontrolt automatic control systemg variable
ietruature, invariant control systemt low order a9tatism, invarlance
,theory,mathematical determination
ABSTRAOT: An attempt was made to make use of some properties of an
-automatic control system with a varihble structure for assuring a
~full reproducibility of the controlled coordinate of the manipulated
:variable. It was aqsumed that the disturbance and manipulated
:variables belong to a sufficiently wide class or functions - a class
of polynomlals of anyg but finite, degree of time*. The coatrol
,'.principle should be formulated without a change in the disturbance
or some Internal coordinates of the objects. Suppose that the motion
,of an automatic control system In the domain er'of an n-dimenoional
ACUESSION VR-- AP4019965
of differential equa- 1
(x1 . ..... xn) is described by the system
tione dx
M I (K.;, no
7
,vhere or axt > Oe 1, 2. .(2)
f0t Oxi < 0,
e are constantso C;C1. it is supposed that the objeetS
QuItrol Is realized by an astatio controller with proportional feed-
;back. In that case a are values which axe linearly dependent upon
Pf the feedback
.kM the coefficient o controller's proportional P
M
Q, (P) g, (4.,
0 (t) - kG (0 + pG
I.The domain'U is defined by the relations
dx
C71>0 :fOiq