The modified Lindstedt-Poincaé method(MLP) is used t analyze strongly nonlinear vibration of beams. Attention is focused on the superhamonic and subharmonic resonances.

本文采用改进的L -P法研究梁的强非线性振动，分析了超谐波共振和次谐波共振两种情况。

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According to the characteristic and demand of the bridge vibration measurement, the linear CCD detect technology is chosen t to realize the non-contact and mobile automatic measurement.

根据桥梁挠度检测的工作特点及要求，采用线阵CCD实现对桥梁振动挠度的远距离、非接触性、动态自动化检测。

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It is introduced in the feature extraction of the vibration signal induced from reciprocating machinery valve, and t.

提出了一种自适应提取往复机械振动信号冲击特征的信号处理方法。

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Vibration testing hasn't changed in 50 years -- and those shake tests may be too rigorous, forcing engineers to over-design everything (read: added cost).

CNN: liftoff

The car wasn't all that tight and most of the (problems) were in the rear, so there was no real vibration that told me that was going to happen.

NPR: Edwards Ends Long Drought At Phoenix