摘要
磁路设计是磁流变减振装置的一个关键技术,针对所研制的磁流变弹性体(MRE)减振装置,建立了一种简化的磁路设计方法。利用有限元模拟分析MRE的相对磁导率和磁饱和点,并对装置磁路结构进行简化理论计算,分析各参数对其磁路变化的影响规律,确定各参数初步取值范围。在此基础上对磁路结构进行数值优化分析,确定装置磁路结构最优参数。分析结果表明,此简化设计方法简便、有效,可作为剪切型MRE减振装置磁路设计的一种实用方法。
Magnetic circuit design is a key technology for magneto-rheological device. For the shear type MRE vibration reduction device developed by our group, a simplified method of designing the magnetic circuit is presented. The relative permeability and magnetic saturation point of MRE are calculated by using finite element simulation analysis. To make sure the scope of the various parameters of the initial values, simplified theoretical calculation and analysis of the influence of various parameters on the magnetic circuit are carried out. Then, the structure of the magnetic circuit is optimized and the optimal parameters are determined. The results show that the simplified design method is simple and effective, and can be used as a practical method for designing magnetic circuit of the shear type MRE vibration reduction device.
引文
[1]邓华夏,龚兴龙,张培强.磁流变弹性体调频吸振器的研制[J].功能材料,2006,37(5):790-792.
[2]Carlson J D,Jolly M R.MR fluid,foam and elastomer devices[J].Mechatronics,2000,10(4-5):555-569.
[3]李光辉,黄学功.有场制备磁流变弹性体的磁路分析[J].磁性材料及器件,2014,45(1):24-27.
[4]Ginder J M.Behavior of Magneto-rheological Fluids[J].MRS Bulletin,1998,23(8):26-29.
[5]汪建晓,孟光.磁流变弹性体研究进展[J].功能材料,2006,37(5):706-709.
[6]Popp K M,Zhang X Z,Li W H,et al.MRE Properties under Shear and Squeeze Modes and Applications[J].Journal of Intelligent Material Systems&Structures,2009,149(1):012095.
[7]邓华夏,龚兴龙,张培强.磁流变弹性体调频吸振器的研制[J].功能材料,2006 37(5):790-792.
[8]蔡路,涂奉臣,潘亚嘉.剪切阀式磁流变阻尼器实用设计方法研究[J].机械科学与技术,2016,35(12):1925-1929.
[9]朱俊涛.磁流变弹性体对宽频激励平台隔减振研究[D].南京:东南大学,2013.
[10]王宇飞,楼伟锋,吴东兴.磁流变弹性体隔振器的磁路结构有限元分析[J].噪声与振动控制,2013,(3):1-4.
[11]涂建维,任伟,吴平.叠层型磁流变弹性体智能隔震支座及其磁场有限元分析[J].噪声与振动控制,2010,30(5):169-172.
[12]余淼,夏永强,王四棋,等.磁流变弹性体的隔振缓冲器磁路分析[J].振动与冲击,2011,30(4):47-50.