期刊文献+

基于无网格方法的钢结构构件优化模拟分析

Analysis of steel structure optimization based on meshless method
下载PDF
导出
摘要 对基于无网格方法的钢结构构件进行了拓扑优化设计模拟分析的研究.以钢构件虚密度作为设计变量,引入势阱函数,构造以钢结构构件的柔度和势阱函数作为优化的目标函数.同时显式表达虚密度与材料弹性模量之间的对应关系,并通过引入势阱函数,使中间密度值向0/1两端聚集.在无网格法框架下进行了灵敏度分析,采用了序列二次规划法(SQP)作为优化算法进行了优化,验证了无网格法框架下进行钢结构构件优化模拟分析的可行性. Based on meshless method for the steel structure topology optimization and virtual density as a design variable, the paper introduced potential-well function and the optimization objective function of flexibility. At the same time, the relationship between the density of virtual materials and elastic modulus is explicitly expressed. The introduction of potential-well function makes that the middle density to 0 / 1. Based on meshless method, the "sensitivity is analyzed, and we use the sequential quadratic programming (SQP) as an optimized algorithm to verify the feasibility of the topology optimization simulation of steel structure.
作者 赵群
出处 《武汉工程大学学报》 CAS 2009年第5期29-32,共4页 Journal of Wuhan Institute of Technology
关键词 无网格方法 势阱函数 钢结构构件拓扑优化 灵敏度分析 meshless methods potential-well,function steel structure topology optimization sensitivity analysis
  • 相关文献

参考文献7

二级参考文献58

  • 1韩圣章,梅传书.工程结构优化设计的CGA算法研究[J].应用基础与工程科学学报,2004,12(2):197-205. 被引量:1
  • 2苏国柱,王永焕,徐海翔,许庆.异型高耸塔架结构优化设计[J].工业建筑,2005,35(2):57-59. 被引量:7
  • 3孙树立,袁明武.一种高层混凝土建筑结构的优化设计方法[J].工程力学,1996,13(A01):558-567. 被引量:5
  • 4Liu W K, Chen Y. Wavelet and multiple scale reproducing Kernel methods. Int J Numer Methods Fluids, 1995, 21:901~931
  • 5Liu W K, Chen Y, Uras R A. Enrichment of the finite element method with reproducing Kernel particle method. In: Cory J J F, Gordon J L, eds. Current Topics in Computational Mechanics. ASME PVP, 1995, 305. 253~258
  • 6Ohs R R, Aluru N R. Meshless analysis of piezoelectric devices. Compt Mech, 2001, 27:23~36
  • 7Belytschko T, Lu Y Y , Gu L. Element-free Galerkin methods. Int J Numer Methods Engrg, 1994, 37:229~256
  • 8Aluru N R. A reproducing Kernel particle method for meshless analysis of microelectromechanical systems. Comput Mech, 1999, 23:324~338
  • 9Lu Y Y, Belytschko T, Gu L. A new implementation of the element free Galerkin. Comput Methods Appl Mech Engrg, 1994, 113:397~414
  • 10Chen J S, Pan C, Wu C T, Liu W K. Reproducing Kernel particle methods for large deformation analysis of nonlinear structures. Comput Methods Appl Mech Engrg, 1996, 139:195~229

共引文献22

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部