Analysis and Optimization of MR Damper Based on Parallel of Positive and Negative Stiffness

Authors

Yanbin Liu, 1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China; ;2. Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing, Henan Province, Henan University of Science and Technology, Luoyang 471003, China;
Yawei Wang, 1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China; ;
Jianhai Han, 1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China; ;2. Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing, Henan Province, Henan University of Science and Technology, Luoyang 471003, China;

Abstract

Abstract: For purpose of reducing broadband vibration of precision machine tool from environment, a MR damper with squeeze mode was designed based on parallel of positive and negative stiffness. First, according to fluid continuity equation and momentum equation, the LPM (Lumped Parameter Model) was set up. Then, using two-way fluid-solid coupled nonlinear FEA (Finite Element Analysis), the flow field distribution was discussed for revealing flow characteristics of damper. Based on the LPM, the dynamic stiffness and displacement transfer rate, as well as the high-low frequency decoupling theory, were studied. Finally, multi-objective genetic algorithm was used to carry out the optimization of damper structure, and the selection strategy of Pareto optimal set was analyzed. This research offers a theoretical guidance for design and application of semi-active damper in the field of precision vibration isolation.

Recommended Citation

Liu, Yanbin; Wang, Yawei; and Han, Jianhai (2019) "Analysis and Optimization of MR Damper Based on Parallel of Positive and Negative Stiffness," Journal of System Simulation: Vol. 30: Iss. 10, Article 44.
DOI: 10.16182/j.issn1004731x.joss.201810044
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss10/44

First Page

3965

Revised Date

2016-12-23

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201810044

Last Page

3975

CLC

TP391.9

Recommended Citation

Liu Yanbin, Wang Yawei, Han Jianhai. Analysis and Optimization of MR Damper Based on Parallel of Positive and Negative Stiffness[J]. Journal of System Simulation, 2018, 30(10): 3965-3975.

DOI

10.16182/j.issn1004731x.joss.201810044