【摘要】 考虑结构设计变量和多阶固有频率优化目标都具有模糊性，以适当方式形成了它们各自的隶属函数。顾及多阶固有频率目标和设计变量约束的最优性隶属程度，构造了多阶固有频率优化的模糊判决函数。形成了模糊环境下结构多阶固有频率动力优化设计方法。以空间杵架算例验证该方法的合理性和有效性。更多还原

【Abstract】 The multiobjective and design variables with fuzzy features are considered in this paper. Their fuzzy membership functions are formed in fitness patterns. The fuzzy judgment functions of multifrequency are constructed by considering optimal membership degrees of objectives and variables. Two methods of structural multifrequency optimization are formed in a fuzzy environment. An example of 3D truss structure is used to demonstrate that the approach derived in this paper is feasible and effective.更多还原