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Abstract: Determination of the membership function of fuzzy safety
state is the key of fuzzy reliability analysis of structure. The
fuzziness and randomness of generalized stress and generalized strength
are simultaneously considered, two main characteristic factors that
influence the value of fuzzy number are analyzed, the calculation theory
of the membership function of fuzzy safety state is developed by using
the information obtaining from fuzzy number, and structural fuzzy
reliability analysis method based on defining fuzzy safety state by
generalized fuzzy random strength is presented. An example is given to
illustrate the method.
Key words: Fuzzy reliability Fuzzy safety event Membership function
Fuzzy number Generalized fuzzy random strength
CLC No: O46.2 TB114.3
国家自然科学基金(50175010)、教育部优秀青年教师资助计划(1766)、油气藏地质和开发工程国家重点实验室开放基金资助课题
(PLN0102). Received 20020105, received in revised form 20020320
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