电磁-气囊主被动混合隔振系统抗冲击设计研究

Anti-shock design for active-passive vibration isolation using electromagnetic actuator and air spring

舰船设备的抗冲击性能设计直接关系到其是否能够顺利实现实用化。本文针对电磁-气囊主被动混合隔振系统抗冲击的设计要求,首先对电磁-气囊主被动混合隔振器进行抗冲击悬挂结构设计并通过仿真和试验获得了混合隔振器的位移载荷特性;其次推导了混合隔振系统中限位器的数学模型并建立了主被动混合隔振系统的多刚体动力学模型,研究了主被动混合隔振系统在冲击载荷下,不同限位器参数对冲击响应的影响。结果表明,所设计的隔振器抗冲击悬挂结构和隔振系统的限位器能够很好地满足舰船设备对抗冲击性能的要求。

Anti-shock behavior of ship equipment is a critical characteristic of the practical demands.According to the anti-shock design requirement of the active-passive vibration isolation using electromagnetic actuator and air spring,the design of anti-shock suspended structure is first introduced and the response curve of the displacement to the load is obtained by simulations and experiments.Then a theoretical model of restrictors in active-passive isolation system is deduced and the multi-rigid-body dynamic model of a restrictor is set up,thus the effects of different parameters of restrictors on the shock response are studied.The results show that the designed suspended structure and restrictor could meet the anti-shock requirements on board.