力学映射下板壳结构的截面离散优化设计

详细信息

DISCRETE OPTIMIZED DESIGN OF SHELL STRUCTURES BASED ON MECHANICS MAPPING

Numerical Simulation Center for Engineering, Beijing University of Technology, Beijing 100022, China

摘要: 依据力学映射的方法把离散变量优化问题转换为连续变量优化问题,通过在连续优化最优解附近构造两节模型,采用无穷小单元的无穷组合方法和变量连接术对板壳结构进行优化.同时在MSC公司的Nastran软件平台上利用其PCL语言开发出优化模块,并进行了算例的优化设计.
- 板壳结构 /
- 离散优化 /
- 力学映射 /
- PCL语言 /
- Nastran软件
Abstract: Discrete optimization is converted into continuous optimization using mechanics mapping. A two-node model is constructed close to the optimal result of continuous optimization. The optimization of shell structures is thus achieved using variable linking and the infinitesimal multiple-node element. Meanwhile discrete optimization module is developed with PCL language based on Nastran software and several examples are optimized.
- shell structure /
- discrete optimization /
- mechanics mapping /
- PCL language /
- Nastran software