ファジィ集合理論を用いた構造物の信頼性解析法

概要

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As many structural failures are caused by human errors, subjective uncertainties should be considered in conducting a reliability analysis. The author proposed a new reliability analysis method for structures considering objective reliability data, e.g. mean values and standard deviations of the load and/or strength, and linguistic evaluation of subjective uncertainties which were classified into three groups namely load, resistance and general. The objective data is fuzzified by a possibility function, the linguistic evaluation of each parameter is added and this method finally yields the fuzzified safety index. As the result of each linguistic evaluation corresponds to each safety index, the membership functions of the size, weight and kernel can be more easily defermined as compared with other methods. The result by this proposed method is less affected by some special linguistic values than those by conventional methods.
一般社団法人日本機械学会の論文
1987-07-25