Study on Dynamic Bingham-polynomial Model of a MRF Damper

doi:10.3901/JME.2017.14.179

Abstract

Abstract: Based on the rheological properties of the magnetorheological fluid in the magnetic field, the dynamic Bingham mechanical model, polynomial model and Bingham-polynomial model of the magnetorheological fluid damper are established, and each of the theoretical mathematical model is obtained after parameter identification. Each precision and Runge turbulence is evlauated for comparing the theoretical and experimental curves by building a dual-channel load simulation test bench as an experimental means. The results show that Bingham model structure is simple, physical meaning is clear, and practicability is strong, but its theoretical models and experimental results are quite different; polynomial model can better to simulate results in more than six, but with the increasing degree of the polynomial, the fitting curve Runge phenomenon will become more serious, and it may be distorted; Bingham-polynomial model is simple, and it can solve the problems that conventional polynomial of the low-order curve which is low precision, high-order curve which is easy to shock, and the experimental results are very good fitting effect. The results can provide the reference of magnetorheological fluid damper dynamics model of choice in the field of vibration control.

Key words: Bingham model, Bingham-polynomial model, MRF damper, polynomial model

CLC Number:

TH137

KONG Xiangdong, LI Bin, QUAN Lingxiao, YI Baijian, ZHANG Yutong. Study on Dynamic Bingham-polynomial Model of a MRF Damper[J]. Journal of Mechanical Engineering, 2017, 53(14): 179-186.

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