A new variable stiffness absorber based on magneto-rheological elastomer

来源期刊:中国有色金属学报(英文版)2009年增刊第3期

论文作者:董小闵 余淼 廖昌荣 陈伟民

文章页码:611 - 615

Key words:magneto-rheological elastomer; variable stiffness; absorber

Abstract: A new adaptive variable stiffness absorber was proposed based on a smart material, magnetorheological elastomer (MRE), and its vibration control performance was investigated. Before developing the proposed absorber, the MREs were firstly fabricated by curing a mixture of 704 silicon rubber, carbonyl iron particles and a small amount of silicone oil under an external magnetic field. Then the mechanical properties of the fabricated MREs were measured. On the basis of the measured mechanical characteristics, the MRE absorber was developed and its working characteristics were also tested under various input currents and excited frequencies. Finally, the control responses of a two-degree-of-freedom dynamic system with a MRE absorber were presented under a chirp input and used to evaluate the effectiveness of the MRE absorber.

基金信息:the National Natural Science Foundation of China
the Post doctoral Fund of China
Chongqing Natural Science Foundation, China

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