客车发动机悬置系统隔振性能研究

Research on Vibration Isolation Performance of Coach Engine Mounting System

针对中通某前置客车所装配的发动机悬置系统的隔振性能进行研究,建立发动机悬置系统的振动模型,于设计初期对悬置系统进行分析,经解耦计算,得到悬置系统Roll主频率为11 Hz;并对样车悬置系统进行全转速扫描和隔振性能测试,悬置系统Roll主频率为10 Hz,隔振性能良好。

This presentation researches the vibration isolation performance of the mounting system on a zhongtong front engine coach. The authors set up the vibration model of the engine mounting system and analyze this system at the beginning of design. Through the decoupling calculation, they know the Roll basic frequency of the mounting system is 11 Hz. Meanwhile they perform the full speed scan and the vibration isolation performance test to the sample vehicle. The test result of Roll basic frequency is 10 Hz, this shows good vibration isolation performance.