面向复杂振动工况的磁流变三向隔振器研究

Research on magnetorheological three-directional vibration isolator for complex vibration condition

磁流变材料具备优异的智能磁控特性,基于其开发的隔振器在复杂振动抑制领域具有广阔应用前景。目前,多数磁流变隔振器仅具备单向隔振功能,缺乏与三向隔振应用相结合的研究。针对此问题,文中采用理论计算、动力学仿真及有限元分析相结合的设计方法,基于传统橡胶及磁流变液材料,设计了一种应用于机载复杂振动工况下的新型磁流变三向隔振器件,并搭建了三向隔振系统进行实验。结果表明,设计的隔振系统在垂向与横向的随机振动衰减效率分别达到了93.93%与96.01%,展现出了良好的宽频随机振动隔振性能。文中针对磁流变隔振器提出的设计方法可同样应用于面向目标需求的其他形式隔振器设计。

Magnetorheological materials possess excellent intelligent magnetic-control characteristics,offering broad prospects for isolators in complex vibration fields.Currently,most magnetorheological isolators are limited to unidirectional vibration isolation function,with limited research on three-directional vibration isolation applications.Addressing this gap,this paper combines theoretical calculation,dynamic simulation,and finite element analysis to design a magnetorheological three-directional vibration isolator.This isolator,developed for airborne complex vibration conditions,integrates traditional rubber and intelligent magnetorheological fluid materials.A three-directional vibration isolation system is constructed for experimental validation.The experimental results show that the attenuation efficiency for vertical and lateral random vibration reaches 93.93%and 96.01%respectively,demonstrating excellent vibration isolation performance.The design method proposed in this paper for magnetorheological vibration isolators holds significance guiding value and can be extended and applied to other vibration isolators tailored to specific requirements.