双层液压式动力反共振隔振器动力学研究

A study on dynamics of a double-layer hydraulic power anti resonance vibration isolator

针对低频隔振问题,基于动力反共振原理设计加工了一种双层液压式动力反共振隔振器。建立了液压式动力反共振隔振器模型,研究了双层液压式隔振器隔振性能和隔振频率的影响因素,加工了液压式隔振器原理样机并进行了扫频试验。研究结果表明:叠加方式能显著影响第二个共振点的位置,进而影响隔振效果;相比于单频动力反共振隔振器,通过叠加而成的双层隔振器可以通过调节参数显著提高隔振性能与隔振带宽。

A double-layer hydraulic dynamic anti resonance isolator was designed and manufactured based on the principle of dynamic anti resonance to address the issue of low-frequency vibration isolation.A hydraulic power anti resonance isolator model was established,and the factors affecting the isolation performance and frequency of the double-layer hydraulic isolator were studied.A prototype of the hydraulic isolator principle was processed and frequency sweep tests were conducted.The results indicate that the stacking method can significantly affect the position of the second resonance point,thereby affecting the isolation effect.Compared to single frequency dynamic anti resonance isolators,double-layer isolators formed by superposition can significantly improve isolation performance and isolation bandwidth by adjusting parameters.