Research on simulation and optimal design of a miniature magnetorheological fluid damper used in wearable rehabilitation training system.
10.7507/1001-5515.202112068
- Author:
Shijun XIE
1
;
Weidong YI
1
;
Moxin YANG
1
;
Yongrui CHEN
1
Author Information
1. University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
- Publication Type:Journal Article
- Keywords:
Extended Bingham model;
Finite element analysis;
Magnetorheological fluid damper;
Topology optimization;
Wearable rehabilitation equipment
- MeSH:
Computer Simulation;
Software;
Wearable Electronic Devices
- From:
Journal of Biomedical Engineering
2022;39(6):1133-1139
- CountryChina
- Language:Chinese
-
Abstract:
The goal of this paper is to solve the problems of large volume, slow dynamic response and poor intelligent controllability of traditional gait rehabilitation training equipment by using the characteristic that the shear yield strength of magnetorheological fluid changes with the applied magnetic field strength. Based on the extended Bingham model, the main structural parameters of the magnetorheological fluid damper and its output force were simulated and optimized by using scientific computing software, and the three-dimensional modeling of the damper was carried out after the size was determined. On this basis and according to the design and use requirements of the damper, the finite element analysis software was used for force analysis, strength check and topology optimization of the main force components. Finally, a micro magnetorheological fluid damper suitable for wearable rehabilitation training system was designed, which has reference value for the design of lightweight, portable and intelligent rehabilitation training equipment.
