The fault feature information can not be obtained availably by regular methods to extract the features of nonstationary vibration signals produced by fault rolling bearings.
滚动轴承的振动信号是非平稳信号，用常规方法难以从振动信号中提取有效故障特征信息。
Although the engine's rotational speed changes notable and the vibration signal is seriously nonstationary, the character component's parameter is picked up precisely.
当发动机转速变化较大，振动信号非平稳严重时，高精度地提取出了特征分量的参数。
Nonstationary random vibration of vehicle systems with uniform variable speed is discussed in this paper.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
The instantaneous power spectrum of nonstationary random vibration signals is discussed in this paper.
本文研究了非平稳随机振动信号的瞬时功率谱。
Solution of Nonstationary Random Vibration of Linear Vehicle Systems with Variable Driving Speed by Mode Method;
对车辆系统变速行驶所引起的非平稳随机振动进行了研究。
Solution of Nonstationary Random Vibration of Linear Vehicle Systems with Variable Driving Speed by Mode Method;
对车辆系统变速行驶所引起的非平稳随机振动进行了研究。
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