新型橡胶-电磁复合主被动隔振器研究  

Novel rubber-electromagnetic composite active/passive vibration isolator

作　　者：任明可 谢溪凌[1,2] 黄志伟[3] 张志谊[1,2] REN Mingke;XIE Xiling;HUANG Zhiwei;ZHANG Zhiyi(State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University,Shanghai 200240,China;Institute of Vibration,Shock&Noise,Shanghai Jiao Tong University,Shanghai 200240,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240 [2]上海交通大学振动、冲击、噪声研究所,上海200240 [3]中国舰船研究设计中心,武汉430064

出　　处：《振动与冲击》2021年第23期32-37,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(11672180,51609226)。

摘　　要：船舶动力设备是船舶振动噪声的重要来源,其运行过程中产生的宽带和低频线谱振动对舱室噪声和水下辐射噪声具有重要影响。针对船用动力设备质量大、振动强的特点,提出一种结构紧凑的低频橡胶隔振器与线性电磁作动器复合的主被动隔振器,并分别对被动隔振器的静态承载能力、电磁作动器的驱动力以及主被动隔振效果进行了仿真分析和测试。结果表明,橡胶隔振器可承受15 t载荷,具有线性刚度,电磁作动器力常数可达72 N/A,与频域加权的干扰重构Fx-LMS控制算法相结合,能大幅抑制300 Hz以内的线谱振动,主被动联合隔振效果优异。Ship power equipment is an important source of ship vibration and noise,broadband vibration and low-frequency line spectrum one generated during its operation have an important influence on cabin noise and underwater radiation noise.Here,aiming at large mass and strong vibration characteristics of marine power equipment,a compact active/passive vibration isolator composed of low-frequency rubber isolator and linear electromagnetic actuator was proposed.The static load-bearing capacity of the passive isolator,the driving force of the electromagnetic actuator and the active/passive vibration isolation effect were simulated and tested,respectively.The results showed that the rubber isolator can withstand a load of 15 tons,and has a linear stiffness;the force constant of the electromagnetic actuator can reach 72 N/A,if it is combined with the weighted in frequency domain and interference-reconstructing Fx-LMS(filtered-x least mean square)control algorithm,the line spectrum vibration within the range of 0-300 Hz can be greatly suppressed;the active-passive joint vibration isolation effect is excellent.

关 键 词：动力设备 振动隔离 主被动隔振器 低频线谱 自适应控制 

分 类 号：TB535[理学—物理]