摘要
结构破坏准则实际上是带有模糊性的，要合理判断结构强度必须依靠模糊概率方法。本文采用基于模糊判决的限界搜索法，给出了计算结构模糊可靠性清晰解的方法。以受集中力的两端刚固梁和船首底板砰击强度为例进行了数值计算，并讨论了容差变化对模糊可靠度指标的影响。
Structural failure criteriia are ones wity fuzzy character in reality. Therefore,rational judgement xoncerning the structural strength cannot be made without resorting to fuzzy probabilisticmethods. By using the Bound Search Method which is based on a fuzzy decision-making,an approach to calculate the crisp solution of the structural fuzzy reliability is prsented in this paper.Two illustrative numerical examples,a built-in beam with a single load and ship bottom platesunder slamming impact pressures , are solved. And the influence of allowable tolerances on thefuzzy reliability indexes is discussed.
出处
《中国造船》
EI
CSCD
北大核心
1994年第4期66-74,共9页
Shipbuilding of China
