图4 磁流变液阻尼减振阻尼力分布范围
3、总结
磁流变液技术虽然是最近几年出现的具有挑战性的技术材料,但是已经显示出优越的性能和广阔的工程应用前景,特别在减振器上的应用更为广阔。由于磁流变液的物理化学成分,决定了其特定的力学特性,利用现代控制技术,可以让磁流变液表现出人们所需要的性能,不论在洗衣机减振,汽车悬架系统,土木采矿,医疗都有成功的应用,相信这项技术在我国的研究和开发会有很大的突破。
参考文献:
[1] Large-Scale Magnetorheological Fluid Damper for Vibration Mitigation: Modeling, Testing and Control/Guangqiang Yang
[2] http://www.sensorsmag.com/sensors/article/articleDetail.jsp?id=335617 [3] Commercial Leader in MR Technology http://www.lord.com/tabid/3317/Default.asp [4] Carlson J D, John C. Controllable Brake. US Patent No. 5842547, 1998 [5] Carlson J D, Clair K A St, Chrzan M J. Controllable Vibration Apparatus. US Patent No.5878851, 1999
[6] David S, Mehdi A. Vehicle evaluation of the performance of magneto-rheological damper for heavy truck suspensions. Journal of vibration and acoustics, 2001, 123: 365-375
[7] Rosensweig R E. Ferrohydrodynamics. London: Cambridge University Press, 1985 [8] Rosensweig R E. On magnetorheology and electrorheology as states of unsymmetric
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stress. Rheol. 1995,39(1): 179-192
[9] Rosensweig R E, Popplewell J, Siller J K. Magnetorheology of ferrofluid composites. Journal of Magnetism and Magnetic Materials. 1995, 194(1-2): 53-56 [10] Laun H, Kormann C M, Willenbacher N. Rheometry on magnetorheological (MR) fluids. I. Steady shear flow in stationary magnetic fields,Rheologica Acta, 1996, 35(5): 417-423
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