Efficient importance analysis methods for structures with distribution parameter uncertainty based on cubature formula | Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University

Open Access

表1

公式Ⅰ~Ⅳ的积分点个数[18]

方法	积分点的个数
公式Ⅰ	d_Θ²+d_Θ+2, 2≤d_Θ≤7
公式Ⅱ	d_Θ²+3d_Θ+3, d_Θ>3
公式Ⅲ	2d_Θ²+1
公式Ⅳ	2d_Θ²+1

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