Open Access
表2
不规则管型优化前试验及仿真结果
| 模态 | 固有频率/Hz | 阻尼比 | 随机振动(仿真) | ||
| 试验 | 仿真 | 应力幅值 s/MPa |
变形幅值 d1/mm |
||
| 一阶 | 283.42 | 294.01 | 0.009 | 5.456 | 1.61×10-2 |
| 二阶 | 549 | 532.74 | 0.012 | ||
| 三阶 | 589 | 559.46 | 0.015 | ||
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