There is a sharp peak in the power spectral density of da- ta. It is a narrow band random vibration which depends on t…

文中还讨论了车轮振动加速度功率谱密度峰值的性质，由于履带节的作用使车轮产生与车速有关的窄带随机振动。

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Then reviewing other methods on fatigue life assessment, provide an acceptable estimation of acceleration factor calculation method under wide-band random vibration condition.

同时总结了其他计算随机载荷疲劳寿命的方法，说明了使用其他模型计算加速因子是可行的。

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Based on the broad-band random vibration test on a clamping support in missiles, this paper investigates the problems on evaluating the attachment bolt looseness in the structure.

本文在某支撑座结构模型宽带随机振动实验的基础上，研究了如何监测连接螺钉组松动故障程度的问题。

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