Guliyev H.B., Zeynalova N.F.
METHODS INDEMNIFICATION OF REACTIVE
CAPACITY IN THE ELECTRIC NETWORK
FOR INCREASE OF REGIME RELIABILITY OF THE POWER
SUPPLY SYSTEM
There are considered questions of
a choice and placing of devices of the battery of static
condensers in distributive electric networks of power supply
systems for indemnification of reactive capacity, on the
basis of technical and economic indicators and investment
possibilities of a power supply system. Given results of
settlement experiments of realization of an offered methods
for the typical distributive network, characterizing
technical and economic efficiency of the made decision are
resulted.
G. Tsitsiashvili, M. Osipova
CONSTRUCTION OF HIERARCHICAL
CLASSIFICATION BY SIMILARITY MATRIX
In this paper a problem of
hierarchical classification of some objects by similarity
matrix solution is solved. This approach gives single
solution of classification problem. Each hierarchical level
is defined by some critical value of a similarity. Using
critical value the similarity matrix is transformed into
contiguity matrix of some no oriented graph in which
connectivity components are constructed. Increasing
successfully critical values it is possible to define
hierarchical classification of initial objects. This
approach is closely connected with reliability theory and
mathematical statistics in which a reaching of critical
value is one of important problems.
M. Artyukhova, S. Polesskiy, V.
Zhadnov
CURRENT APPROACHES TO ANALYSIS OF THE
PROJECT RELIABILITY OF ELECTRONIC DEVICES OF CYCLIC USE
Many electronic devices operate
in a cyclic mode. This should be considered when forecasting
reliability indicators at the design stage. The accuracy of
the prediction and the planning for the event to ensure
reliability depends on correctness of valuation and
accounting greatest possible number of factors. That in turn
will affect the overall progress of the design and, in the
end, result in the quality and competitiveness of products.
This study (research grant ¹ 15-05-0029) was supported by
the National Research University Higher School of Economics’
Academic Fund Program in 2015.
Arthur Fries
DERIVATION OF THE DISTRIBUTION
FUNCTION FOR THE TAMPERED BROWNIAN MOTION PROCESS MODEL
The tampered Brownian motion
process (BMP) arises in the context of partial step-stress
accelerated life testing when the underlying system fatigue
accumulated over time is modeled by two constituent BMPs,
one governing up to the predetermined time point at which
the stress level is elevated and the other afterwards. A
conditioning argument obtains the probability distribution
function (pdf) of the corresponding time-to-failure random
variable. This result has been reported and studied in the
literature, but its derivation has not been published.
Y. Paramonov, S. Tretyakov, M.
Hauka
BINARY LAMBDA-SET FUNCTION AND
RELIABILITY OF AIRLINE
A definition of binary lambda -
set function is introduced. It is used for the inspection
interval planning in order to limit a probability of fatigue
failure rate (FFR) of an airline (AL). A solution of this
problem is based on a processing of the result of the
acceptance full - scale fatigue test of a new type of an
aircraft. Numerical example is given.
