Experimental investigation on vibration characteristics of sandwich beams with magnetorheological elastomers cores  

作　　者：魏克湘 孟光 张文明 朱石沙 

机构地区：[1]Department of Mechanical Engineering,Hunan Institute of Engineering [2]State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University [3]School of Mechanical Engineering,Xiangtan University

出　　处：《Journal of Central South University》2008年第S1期239-242,共4页中南大学学报（英文版）

基　　金：Project(10602033) supported by the National Natural Science Foundation of China;Project(07B012) supported by Scientific Research Fund of Education Department of Hunan Province;Project(VSN-2007-01) supported the Research Fund of State Key Laboratory of Mechanical System and Vibration

摘　　要：A sandwich beam specimen was fabricated by treating with MR elastomers between two thin aluminum face-plates.Experiment was carried out to investigate the vibration responses of the sandwich beam with respect to the intensity of the magnetic field and excitation frequencies.The results show that the sandwich beams with MR elastomers cores have the capabilities of shifting natural frequencies and the vibration amplitudes decrease with the variation of the intensity of external magnetic field.A sandwich beam specimen was fabricated by treating with MR elastomers between two thin aluminum face-plates. Experiment was carried out to investigate the vibration responses of the sandwich beam with respect to the intensity of the magnetic field and excitation frequencies. The results show that the sandwich beams with MR elastomers cores have the capabilities of shifting natural frequencies and the vibration amplitudes decrease with the variation of the intensity of external magnetic field.

关 键 词：magnetorheological(MR) ELASTOMER SANDWICH beam vibration response DYNAMICAL CHARACTERISTIC 

分 类 号：TQ330.1[化学工程—橡胶工业]