复合式橡胶隔振器特性分析及设计验证  

Characteristic analysis and design validation of compound rubber vibration isolator

作　　者：张晓 杜堃[1] ZHANG Xiao;DU Kun(China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]中国舰船研究设计中心,湖北武汉430064

出　　处：《中国舰船研究》2020年第6期149-154,共6页Chinese Journal of Ship Research

摘　　要：[目的]与传统设备相比,永磁设备因其在相同工况下重量轻、体积小而被广泛应用于各型船舶。但在高频段,其振动测量值和传统设备相比高得多,从而影响了船舶的声学性能和实船应用效果,为此,提出一种复合式橡胶隔振器设计方案。[方法]以某永磁设备的隔振系统设计为研究对象,在橡胶隔振系统中间插入中间质量得到复合式橡胶隔振器,对传统橡胶隔振器与复合式橡胶隔振器的传递特性进行对比,并开展方案设计的试验验证。[结果]结果表明,所提复合式橡胶隔振器方案可行,能明显提升高频段内永磁设备机脚的隔振效果,相比传统橡胶隔振器,复合式橡胶隔振器的隔振效果约提高20 dB。[结论]作为一种振动控制技术,所设计的复合式橡胶隔振器可以对高频振动进行有效控制。[Objectives]Due to lower weight and volume under the same working conditions, permanent magnet equipment is extensively used by many kinds of ships. However, its measured vibration at high frequencies is much higher than traditional equipment, which will affect the ship’s acoustic performance, and reduce the effectiveness of using such equipment in ships. A kind of compound rubber vibration isolator is therefore designed to solve this problem.[Methods] In order to isolate the vibrations of a given piece of permanent magnet equipment, a compound rubber vibration isolator is designed by inserting middle mass into a rubber isolating system. The transmission characteristics of traditional and compound rubber vibration isolators are compared, and experimental validation for the isolating design is carried out.[Results]The results show that the proposed compound vibration isolator is feasible and can improve the vibration isolation effect of a piece of permanent magnet equipment’s machine leg at high frequency. This effect can improve 20 dB compared to traditional rubber vibration isolators.[ Conclusions] As a method for vibration control, the designed compound rubber vibration isolator can effectively control high frequency vibration.

关 键 词：高频振动 隔振 振动控制 复合式隔振器 

分 类 号：U661.44[交通运输工程—船舶及航道工程]