Dynamic response reliability based topological optimization of continuum structures involving multi-phase materials

作者：Xu, Bin^*; Zhao, Lei; Li, Wenyu; He, Jianjun; Xie, Yi Min

来源：Composite Structures, 2016, 149: 134-144.

DOI：10.1016/j.compstruct.2016.04.020

• Topological optimization
• Continuum structure
• Dynamic response
• Reliability
• Multi-phase material
• BESO method

For the purpose of improving structural dynamic reliability, a topological optimization methodology for maximizing the dynamic response reliability index is proposed based on the bi-directional evolutionary structural optimization (BESO) method. The objective of the present study is to maximize the dynamic response reliability index at specified points on the structure under random excitation, subject to volume constraints on multi-phase materials over the admissible design domain. The sensitivity of the dynamic response reliability index with respect to the design variables is derived. The optimization procedure of the extended BESO method is presented. A series of numerical examples in both 2D and 3D are presented to demonstrate the effectiveness and efficiency of the proposed approach.

• 出版日期2016-8-1
• 单位西北工业大学; 长沙理工大学