复合隔振器隔振装置的性能研究

目的为提升隔振装置的隔振性能,研发具有优良隔振性能的隔振装置。方法在20~1600 Hz频段内,利用有限元分析软件对某新型复合隔振器隔振装置进行谐响应分析,并进行整体隔振试验,得出隔振装置在外激励下频域上的振动响应。结果对比分析有限元仿真结果与隔振试验数据,在20~80 Hz内,振级落差大于15 dB,在200~1600 Hz上,振级落差也在24 dB以上,在200~1000 Hz上加速度振级落差仿真和实验的RMS值分别为36.6 dB和38.9 dB,结论该复合式隔振器隔振装置具有优良的隔振性能。

Performance of Vibration Isolation Device for Composite Vibration Isolator

Objective To improve vibration isolation performance of vibration isolation device and develop vibration isolation device with excellent low frequency vibration isolation performance. Methods The harmonic response analysis on a new combined type vibration isolation device was carried out in the 20~1600Hz frequency band with software of finite element analysis. The overall vibration isolation test was also carried out. And the vibration response of vibration isolation device under external excitation in the frequency domain was obtained. Results The result of finite element simulation and data of vibration isolation were compared. The vibration level difference was greater than 15 dB, on 20~80 Hz. On 200 Hz to 1600 Hz, the vibration level drop was also above 24 dB. RMS values of acceleration vibration level simulation and experiment were 36.6 dB and 38.9 dB respectively in 200~1000 Hz. Conclusion The combined type vibration isolation device has excellent vibration isolation performance.