【摘要】 磁流变弹性体(MRE)具有比磁流变液更好的控制性能;它在结构振动半主动控制中有着广泛的应用。对国内外MRE夹层梁的动力特性研究进行了综述,阐述了MRE夹层梁的材料本构模型、理论建模方法和实验分析研究成果。最新的研究成果表明:磁流变夹层梁的固有频率可通过控制外加磁场的大小及位置进行增大或减小。同时对研究内容进行了总结,并对该领域未来研究方向进行了展望。更多还原

【Abstract】 In recent years,more and more researchers focus on the magnetorheological elastomer( MRE) sandwich beam structures. MR elastomers have a better control performance than that of typical MR fluid. it has extensive applications in the semi-active control of structural vibration. In this paper,the studies on dynamic characteristics of the MRE sandwich beam at home and abroad are reviewed. The review focuses on constitutive models of material,methods of theoretical modeling and experimental analysis of MRE sandwich beam,researches and findings. The latest research results show that the natural frequency of MR sandwich beam can be increased or decreased by controlling the intensity and location of the applied magnetic field. At last,the content of this paper is summarized,and the future research direction in this field is prospected.更多还原