节点文献
基于自然邻接点局部Petrov-Galerkin法的板结构拓扑优化
A topology optimization of plate based on the natural neighbour Petrov-Galerkin method
【Author】 S.L.Li,S.Y.Long
【机构】 湖南大学汽车车身先进设计制造国家重点实验室;
【摘要】 本文将基于自然邻接点插值的无网格局部Petrov-Galerkin(NNPG)方法应用于板结构的拓扑优化问题。基于SIMP的拓扑优化模型和最优准则法建立设计变量的优化修正方案。位移场和名义密度场均采用自然邻接点插值形函数进行离散插值。通过几种典型的拓扑优化算例证明了该数值算法的正确性和有效性。
【Abstract】 A new implementation of topology optimization for the plate described by the Reissner-Mindlin theory based on the meshless natural neighbour Petrov-Galerkin method(NNPG)is proposed in this work.The numerical approach presented here is based on the SIMP formulation of the topology optimization problem and the optimality criteria method for iterative optimization.The natural neighbour interpolation shape function is employed to discretize both displacement and bulk density fields.Several examples are provided to illustrate the validity and effectiveness of the proposed method.
【Key words】 topology optimization; meshless method; the natural neighbour interpolation; SIMP;
- 【会议录名称】 中国计算力学大会’2010(CCCM2010)暨第八届南方计算力学学术会议(SCCM8)论文集
- 【会议名称】中国计算力学大会’2010(CCCM2010)暨第八届南方计算力学学术会议(SCCM8)
- 【会议时间】2010-08-20
- 【会议地点】中国四川绵阳
- 【分类号】O241.82
- 【主办单位】中国力学学会计算力学专业委员会、南方计算力学联络委员会