Suspension Settlement Regulation of Magneto-rheological Fluids Using Pulsed Magnetic Fields
Magneto-rheological damper has demonstrated its value for enhancing seismic performance of engineer ing structures in recent years.Its operative efficiency, however, would be reduced significantly once the dis persion stability loss of magneto-rheological fluids happens.Settlement stability, as a critical argument of dispersion stability of magneto-rheological fluids, has thus received great appeal, of which the challenge, so far as that is concerned, still remains open due to the physical account of density difference between magnet ic particles and matrix.In the present paper, a regulation program with pulse loading of magnetic fields on suspension settlement is proposed.The micro-structured behaviors of magneto-rheological suspensions in set tlement state and their effects upon the dynamic yield strength of MR fluids are investigated firstly using a large-scale atomic/molecular massive parallel simulator (LAMMPS).The pulsed-magnetic regulation pro gram including logical time interval and magnitude level of loading fields is the illustrated through the investi gation of dynamic control of suspension positions.
Tengfeng Chu Yongbo Peng Ying Feng Jianbing Chen
School of Civil Engineering, Tongji University, Shanghai, China State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University School of Civil Engineering, Tongji University, Shanghai, China; State Key Laboratory of Disaster Re
国际会议
哈尔滨
英文
595-602
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）