The main vibration signals can be obtained by reducing its dimensions through matrix conversion in the principal component analyzed, and realize the analysis to the vibration noise source.
运用主成分分析方法，经过矩阵变换，提取振动信号的主要信息，从而实现对振动噪声源的分析。
The radial magnetic force is the primary source of vibration and noise in doubly-salient motor.
双凸极电机的径向磁吸力是电机产生振动与噪声的主要来源。
The vibration source is vibration motor. It features constant operation, convenient maintenance, low noise and long life.
振动源是采用振动角电机驱动，运转平稳，维修方便，噪音低，寿命长。
It has also been clear that the source of piston knock noise is the impact between piston and cylinder sleeve by the vibration acceleration of the engine's body surface.
又通过发动机机体表面振动加速度，确定活塞敲击噪声产生的根源在于活塞与缸套的碰撞冲击。
The primary source of the low frequency acoustics is the radiating noise produced by the vehicle structural vibration, which is induced by the vibrating of the engine and the suspension system.
低频噪声的来源主要是由发动机振动，悬架系统振动所引起的车身板件振动产生的辐射噪声。
Sound and vibration analysis can fully identify the source of noise, thus controlling the noise accordingly.
声振分析能从根本上弄清结构产生噪声的根源，从而有针对性地对噪声进行控制。
The results show that reduction of fuel pipe vibration or improving damping function of hose clip can control the effect of source of vibration on interior noise.
结果表明，减小油管的振动或提高管夹的减振功能可控制振动源对车内噪声的影响。
An experimental study on the engine noise source identification by the method of surface vibration measurement technique is carried out in this paper.
通过测量柴油机表面振动速度的方法对其进行了表面噪声源识别的研究。
The vibration source is vibration motor. It features constant operation, convenient maintenance, low noise and long life.
振动源是采用振动角电机驱动，磷酸运转平稳，维修方便，噪音低，寿命长。
Like ordinary motors, noise and vibration of PMSM are also important performance indicators. Therefore, it is very meaningful to study noise and vibration source of PMSM.
与普通电机一样，振动噪声也是永磁电机的一个重要性能指标，因此研究永磁电机的振动噪声源就显得十分有意义。
The source of noise and vibration of PMSM fed by inverter are identified. Reasons of resulting in noise and vibration in high-frequency was revealed.
对变频供电下特有的振动噪声源进行了识别，揭示了产生电机高频振动噪声的原因。
The vibration of the circular saw plate is a main sound source in the metal sawing noise.
圆锯片的振动是金属锯切噪声的主要声源之一。
Based on the analysis of vibration source, vibration transmission path and transmission characteristics, the methods of vibration isolation and noise reduction are decided.
通过分析振动的来源以及振动传递的路径和传递特性，确定了隔振降噪的方法。
Based on the analysis of vibration source, vibration transmission path and transmission characteristics, the methods of vibration isolation and noise reduction are decided.
通过分析振动的来源以及振动传递的路径和传递特性，确定了隔振降噪的方法。
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