With the ANSYS software and practical project example,the equivalent finite element stresses is applied in stress restriction for the shape optimization of arch dam by using APDL.

• 基于有限元计算软件ANSYS,结合工程实例,利用参数化设计语言APDL将拱坝等效应力应用于应力约束,进行拱坝体型优化设计。