Unlike the better balanced straight-six or even the ultra-smooth V-12 engine, the humble four-cylinder generates an up and down vibration with a frequency of twice the crankshaft's rotational speed.
不像运行起来比它更稳定的直列六缸引擎或者极其流畅的V - 12引擎，卑微的四缸引擎会以一种比自身机轴转速高两倍的频率产生一上一下的振动。
With the frequency as a fundamental parameter of vibration isolation, engine vibration isolation problems have been successfully solved.
以频率作为隔振的主要参数，成功地解决了发动机的隔振问题。
Then the author analyses the effect of the frame vibration and tries to make the natural frequency of vibration beyond the range of engine revolution rate.
分析了发动机振源对车架振动的影响，使车架主要模态的自振频率避开了发动机转速范围；
Cavitation erosion is caused by high frequency vibration of engine body and high pressure impulse of coolant.
缸套穴蚀主要是由机体的高频振动和冷却水的高压冲击而引起。
The vibration of engine is characteristic of wide frequency and multi-actuators.
发动机的振动具有宽频、多源的特征。
Hydraulic engine mounting is a strong nonlinear vibration isolating component, and its dynamic characteristics varies with the exciting frequency and amplitude.
发动机液压悬置是非线性很强的隔振元件，其动特性因激振频率和激振振幅的改变而改变。
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。
Owning to the instantaneous nonlinear characteristics of vibration signals from diesel engine, a new method for identifying characteristic frequency band is put forward by adopting its IMF component.
针对柴油机振动信号的瞬时非线性特点，提出采用柴油机振动信号的IMF分量进行特征频带识别的新方法。
The lifting wavelet package transform based on interpolating subdivision was introduced. The engine cylinder head vibration signal's time-frequency characteristics were analyzed.
分析了移动装备发动机缸盖振动信号的时频特性，介绍了插补细分提升小波包变换算法。
The 6th stage blade in aero-engine compressor is taken as an example, the temperature effect on the blade vibration frequency blade is investigated.
以某型航空发动机压气机第六级叶片为例，研究了温度对叶片振动频率的影响。
The 6th stage blade in aero-engine compressor is taken as an example, the temperature effect on the blade vibration frequency blade is investigated.
以某型航空发动机压气机第六级叶片为例，研究了温度对叶片振动频率的影响。
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