改进的响应面方法在二维连续体形状优化中的应用

详细信息

THE APPLICATION OF IMPROVED RSM IN SHAPE OPTIMIZATION OF TWO-DIMENSION CONTINUUM

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

摘要: 在二维连续体结构形状优化中,采用响应面方法近似求解约束的敏度来建立模型:根据结构分析的响应值,可以拟合出复杂响应对设计变量的显函数。为克服各试验点的拟合值与结构真实响应值之间的误差,发展了一种在中心试验点精确拟合的方法,提高了模型的精度,收到了良好的效果。
- 改进的响应面方法 /
- 敏度分析 /
- 试验设计 /
- 二维连续体 /
- 形状优化
Abstract: RSM is used to establish models in shape optimization for two-dimension continuum by solving sensitivity of constraint conditions approximately, that is, complicated response function in terms of design variables can be fitted according to the responses of structural analysis. The error between the fitting value and the structural response value at the design point will affect precision of optimization. This paper provides an improved method that fitting accurately at the central design point. The examples demonstrate that it is a feasible and efficient method.
- improved response surface methodology /
- sensitivity analysis /
- experiment design /
- two-dimension continuum /
- shape optimization