摘要
基于有限元法的一阶优化方法对拱坝体形进行优化。优化计算中可考虑最多达60个左右的优化变量;同时,可以真实地模拟地基的不均匀性和复杂的地质构造。计算实例表明,该方法求解效率高,结果的收敛性稳定,优化后的坝体应力分布更趋于均匀。
This paper applies first order optimization method to configuration optimization of arch dam. on basis of FEM. Up to 60 optimization variables may be adopted during the optimization. And at the same time, it can simulate really the inequality of groundsill and complex structure of geology. The result of an engineering example shows that solution is effective and convergence is stable, and stress distribution of dam body tends to uniformity after optimization.
出处
《水电能源科学》
2003年第2期25-28,共4页
Water Resources and Power
关键词
拱坝
体形优化
有限无法
一阶优化方法
arch dam
configuration optimization
FEM
first order optimization method
