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Reliability-based polyoptimization of structural systems using fuzzy logic

机译：基于模糊逻辑的结构系统基于可靠性的多优化

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In this paper an optimum design procedure for minimizing structural mass and vertical deflections of loaded joints subject to reliability constraints is discussed. The fuzzy optimization technique based on the principle of intersection of fuzzy decision proposed by Bellamn & Zadeh (1970) is used for the multiobjective fuzzy optimization of trusses. Loads and constraints are represented by fuzzy numbers. The formulation of the fuzzy reliability-based optimization procedure is illustrated by two numerical examples of a five a ten-bar truss. Member cross-sectional reas are defined as deisng variables. The proposed methodology can be employed for structural optimization problems involving vectors of conflicting objective functions with crisp or fuzzy loads and constraints.
机译：在本文中，讨论了一种在受可靠性约束的情况下使受力节点的结构质量和垂直挠度最小的最佳设计程序。 Bellamn＆Zadeh（1970）提出的基于模糊决策相交原理的模糊优化技术被用于桁架的多目标模糊优化。负载和约束由模糊数表示。通过五个十杆桁架的两个数值示例来说明基于模糊可靠性的优化过程的制定。成员横截面面积定义为设计变量。所提出的方法可以用于结构优化问题，该结构优化问题涉及具有清晰或模糊负载和约束的冲突目标函数的向量。

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