Structural Multiobjective Dynamic Optimization in a Fuzzy Environment
Song Haiping, Zhou Chuanrong
(Research Institute of Vibration Engineering, NUAA, Nanjing, 210016£©

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 multi frequency 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.
Keywords: fuzzy, frequency, optimization.