Open Access
表7
高维悬臂梁的不确定性参数分布
| 参数 | 分布类型 | 均值 | 方差 | 自相关函数 |
| M1/(N·m-1) | 对数正态 | 8×104 | 2×104 | |
| M2/(N·m-1) | 对数正态 | 5×104 | 1×104 | |
| qL1/(N·m-1) | 正态 | 3×104 | 3×103 | |
| qR1/(N·m-1) | 正态 | 2×104 | 2×103 | |
| qL2/(N·m-1) | 正态 | 2×104 | 1×103 | |
| qR2/(N·m-1) | 正态 | 1×103 | 10 | |
| a1/m | 正态 | 1.5 | 5×10-3 | |
| a2/m | 正态 | 4.5 | 5×10-3 | |
| b1/m | 正态 | 0.75 | 1×10-3 | |
| b2/m | 正态 | 2.5 | 1×10-3 | |
| c1/m | 正态 | 0.25 | 5×10-4 | |
| c2/m | 正态 | 1.75 | 1×10-3 | |
| d1/m) | 正态 | 1.25 | 1×10-3 | |
| d2/m | 正态 | 4.75 | 1×10-3 | |
| L/m | 正态 | 5 | 0.01 | |
| w/m | 正态 | 0.2 | 1×10-4 | |
| h/m | 正态 | 0.4 | 1×10-4 | |
| F1(t)/N | 平稳高斯 | 2×104 | 5×103 | exp(-25(t1-t2)2) |
| F2(t)/N | 非平稳高斯 | μ (t) | 6×103 | exp(-10(t1-t2)2) |
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