排序方式: 共有8条查询结果,搜索用时 0 毫秒
1
1.
2.
基于有限元概念的解析解 总被引:1,自引:1,他引:0
基于有限元概念,本文研究了结构响应对于设计变量的严格解析解,以空间桁架为例,得到了位移显式的解析表达式——一个关于截面设计变量的有理函数,并进行了严格的数学论证;进而推出了有益于结构敏度分析、结构优化的若干结论,针对含有位移显式的优化模型,提出了采用广义几何规划解法的建议;最后计算了若干简例. 相似文献
3.
On the basis of the concept of finite element methods, the rigorous analytical solutions of structural response in terms of the design variables are researched in this paper. The spatial trusses are taken as an example for the solution of the analytical expressions of the explicit displacements which are proved mathematically; then some conclusions are reached that are useful to structural sensitivity analysis and optimization. In the third part of the paper, a generalized geometric programming method is sugguested for the optimal model with the explicit displacement. Finally, the analytical solutions of the displacements of three trusses are given as examples. 相似文献
4.
平面应变脆性损伤裂纹场分析 总被引:1,自引:0,他引:1
根据Bui的脆性损伤理论,本文研究I型拉伸裂纹的平面应变过程区及其力学场。计及裂尖材料的有限变形,细致的有限元分析给出了小范围屈服条件下两种典型的损伤区形貌。 相似文献
5.
6.
On the basis of the concept of finite element methods,the rigorous analytical solutionsof structural response in terms of the design variables are researched in this paper.Thespatial trusses are taken as an example for the solution of the analytical expressions of theexplicit displacements which are proved mathematically;then some conclusions arereached that are useful to structural sensitivity analysis and optimization.In the third partof the paper,a generalized geometric programming method is sugguested for the optimalmodel with the explicit displacement.Finally,the analytical solutions of the displacementsof three trusses are given as examples. 相似文献
7.
8.
1