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

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表6

算例3.2的重要性测度指标的计算结果

重要性指标	MC	QMC	e_QMC/%	S-DLCF	e_S-DLCF/%	S-SLCF	e_S-SLCF/%
S_iM	μ_d	0.039 46	0.038 61	2.16	0.039 11	0.90	0.039 44	0.04
	μ_h	0.169 30	0.169 67	0.22	0.169 19	0.07	0.170 26	0.57
	μ_D₀	0.008 66	0.006 23	28.08	0.008 64	0.19	0.008 58	0.92
	μ_t	0.002 17	0.001 25	42.26	0.002 17	0.06	0.002 10	3.21
	μ_K	0.776 59	0.775 43	0.15	0.775 12	0.19	0.777 27	0.09
S_iM^T	μ_d	0.043 58	0.043 18	0.92	0.043 21	0.86	0.043 51	0.16
	μ_h	0.184 77	0.188 15	1.83	0.184 03	0.40	0.183 08	0.92
	μ_D₀	0.019 90	0.014 21	28.59	0.018 96	4.71	0.019 34	2.79
	μ_t	0.014 57	0.014 31	1.79	0.014 17	2.75	0.014 26	2.18
	μ_K	0.783 46	0.785 23	0.23	0.781 32	0.27	0.783 26	0.02
S_iD	μ_d	0.295 94	0.291 01	1.67	0.303 34	2.50	0.291 42	1.53
	μ_h	0.407 56	0.398 71	2.17	0.403 82	0.92	0.412 94	1.32
	μ_D₀	0.044 76	0.046 52	3.93	0.044 52	0.53	0.043 02	3.88
	μ_t	0.011 64	0.011 48	1.42	0.011 65	0.02	0.011 62	0.20
	μ_K	0.006 80	0.011 13	63.69	0.006 91	1.68	0.006 65	2.24
S_iD^T	μ_d	0.489 39	0.497 67	1.69	0.496 94	1.54	0.497 29	1.61
	μ_h	0.571 98	0.567 66	0.76	0.577 24	0.92	0.567 76	0.74
	μ_D₀	0.134 44	0.136 55	1.57	0.136 59	1.60	0.133 97	0.34
	μ_t	0.083 36	0.079 19	5.01	0.082 16	1.44	0.082 65	0.85
	μ_K	0.064 37	0.066 49	3.29	0.062 63	2.70	0.065 65	1.98

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