隔膜抽气泵用三明治约束阻尼垫片减振特性分析  

Vibration Reduction Characteristics of Sandwich Constrained Damping Gasket for Diaphragm Air Pump

作　　者：陈卫 王玮 刘志恩[1] 郝同辉[2] 柴方 CHEN Wei;WANG Wei;LIU Zhien;HAO Tonghui;CHAI Fang(School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China;School of Materials Science and Engineering,Hubei University,Wuhan 430062,China)

机构地区：[1]武汉理工大学汽车工程学院,武汉430070 [2]湖北大学材料科学与工程学院,武汉430062

出　　处：《机械科学与技术》2023年第8期1171-1177,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金面上项目(52175111)。

摘　　要：隔膜抽气泵在运转过程中会产生振动,使用阻尼垫片可以有效减小其振动。设计并制备了一种三明治约束阻尼垫片,其约束层使用铝合金,阻尼层采用黏弹性材料。通过时域和频域响应分析对比了三明治约束阻尼垫片安装前后隔膜泵的振动响应,发现该垫片能够以4 mm(或传统的1/10)厚度实现良好的减振效果,提高了系统的稳定性。与此同时,本文还从材料和结构的角度分析了三明治约束阻尼垫片的减振机理。Diaphragm air pump will produce vibration during operation.The constrained damping gasket(SCDG)can effectively reduce the vibration of the diaphragm air pump.A SCDG is designed and prepared in this paper,in which the aluminum alloys as the constrained layer and the viscoelastic materials as the damping layer.The vibration response of the diaphragm air pump with and without SCDG was compared through the time-domain and frequency-domain response.It is found that the SCDG can achieve good damping effect with 4 mm(or 1/10 thickness of traditional gaskets)as the thickness,thus improving the stability of the system.At the same time,the damping mechanism of SCDG is analyzed from the aspects of material and structure.

关 键 词：隔膜抽气泵 三明治约束阻尼垫片 时域响应 频域响应 减振机理 

分 类 号：TB535.1[理学—物理]