As we know, the velocity level of vibration has certain convertible relation with the sound pressure grade. So noise strength in a certain position of engine can be indirectly but well illustrated by the velocity level.
由于振动速度级与声压级存在一定的换算关系,因此,振动速度级结果虽然不能直接作为发动机结构辐射噪声强弱的评判标准,但是可以间接地评价发动机噪声在某一部位的高低。
参考来源 - F168小汽油机机体振动分析·2,447,543篇论文数据，部分数据来源于NoteExpress
轮胎激光无损检测技术主要用于航空轮胎和高速度级轮胎内部脱层和气泡的检测。
The non-destructive laser inspection is mainly used to detect the seperation and blister in airplane tire and high speed tire.
经管路模型试验和水泵机组试验证明，这两种隔振垫可使管路系统振动加速度级明显下降。
Through piping model test and pump unit trial it is shown that with the two types of isolating shims the vibration acceleration of the piping system can be reduced evidently.
根据车用发动机的实际使用工况，在不同转速及爆发压力下对其进行动力学计算，得到发动机的表面振动速度级。
According to the actual operational condition of engine, calculate dynamics with different rotational speed and breakout pressure, and get the surface vibration speed stage of engine.
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