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Sun Youchao
College of Civil Aviation,
Nanjing University of Aeronautics
and Astronautics,
Nanjing 210016, China
Shi Jun
Institute of the Unmanned Aircraft,
Nanjing University of Aeronautics
and Astronautics,
Nanjing 210016, China |
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RELIABILITY
ASSESSMENT OF ENTROPY METHOD
FOR SYSTEM
CONSISTED OF
IDENTICAL
EXPONENTIAL
UNITS*
Abstract: The reliability assessment
of unit-system near two levels is the most important content in
the reliability multi-level synthesis of complex systems.
Introducing the information theory into system reliability
assessment, using the addible characteristic of information
quantity and the principle of equivalence of information
quantity, an entropy method of data information conversion is
presented for the system consisted of identical exponential
units. The basic conversion formulae of entropy method of unit test data are derived based on the principle of information quantity equivalence. The general models of entropy method synthesis assessment for system reliability approximate lower limits are established according to the fundamental principle of the unit reliability assessment. The applications of the entropy method are discussed by way of practical examples. Compared with the traditional methods, the entropy method is found to be valid and practicable and the assessment results are very satisfactory.
Key words:
Reliability synthesis Data conversion Entropy method Information quantity
Exponential unit |