In this paper, we have discussed two problems:(1) the method of representation of strain energy density function in the stress and strain spaces;

本文主要解决的问题有两点：1、在应力空间和应变空间中表示应变能密度函数的方法；

youdao

In 1990s based on the eigenfunction method of representation theory of groups, a new method, the symmetrized boson representation (SBR) method, was brought forward.

90年代，陈金全等人在点群的表示理论上提出了一种新的方法，对称化玻色表象方法(SBR)。

youdao

The main work is listed below:(1) A self-adaptive selection method of representation is proposed. The validity of this method is proved by the simulation of function optimization.

提出了一种自适应的代表个体选择方法，并通过函数优化的仿真实验验证了改进的方法的有效性。

youdao