...机；弹性结构；自振频率；UG [gap=1062]Key words ：YD-2 hydraulic-tamping machine；elastic structure；natural frequencies；UG...
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natural frequencies vector assurance criterion 固有频率向量置信准则
five natural frequencies 五阶固有频率
modal natural frequencies 模态固有频率
close natural frequencies 集聚固有频率
dynamic natural frequencies 动态固有频率
multiple natural frequencies 多阶固有频率
measuring natural frequencies 自振频率测试
nonlinear natural frequencies 非线性固有频率
This conclusion corrects the point of view that the modal flexibility is more sensitive to damage than either natural frequencies or the mode shapes.
这一结论，纠正了通常认为模态柔度比固有频率和模态振型对损伤更敏感的片面观点。
参考来源 - 结构损伤识别及数值模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
At the natural frequencies, there is a peak in the function.
这个函数在固有频率上有峰值。
Objective To increase the natural frequencies of hypergravitation training facility.
目的提高超重训练设备整机固有频率。
Analyses of these curves make the natural frequencies of the shaft brackets available.
分析尾轴架的动刚度曲线，可得到尾轴架结构的固有频率。
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