主要研究内容如下：（1）基于单项式容积法和混沌多项式展开，构造了简约配点响应面模型。

The main research content is as follows:(1) Reduced collocation response surface model (RCRSM) is constructed using polynomial chaos expansion (PCE) with points of monomial cubature rule (MCR).

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本文是关于非线性响应理论的文章的前半部分。由闭路格林函数的生成泛函的展开式及闭路格林函数的变换关系导出非线性响应的一般表示式。

By using the generating functional and the transformations for different forms of the closed time path Green's functions, the general equations on nonlinear response are derived.

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