TY - JOUR
T1 - Experimental testing and modelling of a rotary variable stiffness and damping shock absorber using magnetorheological technology
AU - Deng, Lei
AU - Sun, Shuaishuai
AU - Christie, Matthew D.
AU - Yang, Jian
AU - Ning, Donghong
AU - Zhu, Xiaojing
AU - Du, Haiping
AU - Zhang, Shiwu
AU - Li, Weihua
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was supported by the Australian Research Council Linkage Grants (nos LP160100132 and LP150100040), Discovery Grant (no. DP150102636), National Natural Science Foundation of China (no. 51375468) and has been conducted with the support of the University of Wollongong and China Scholarship Council joint scholarship.
Publisher Copyright:
© The Author(s) 2019.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - This article presents a novel rotary shock absorber which combines the abilities of variable stiffness and variable damping by assembling a set of two magnetorheological damping units, one of which being placed in series with a rubber spring. This allows the damping and stiffness to be controlled independently by the internal damping and the external damping units, respectively. A test bench was established to verify the variable stiffness and damping functionality. The experimental results for variable damping test, variable stiffness test and co-working test are presented. At the amplitude of 10° and the frequency 0.5 Hz, increases of 141.6% and 618.1% are obtained for damping and stiffness separately if the corresponding current increased from 0 to 1 A and from 0 to 2 A, respectively. A mathematical model is then developed and verified to predict the changing of the damping and stiffness. The test results and the simulated model confirm the feasibility of the shock absorber with the ability of varying damping and stiffness simultaneously.
AB - This article presents a novel rotary shock absorber which combines the abilities of variable stiffness and variable damping by assembling a set of two magnetorheological damping units, one of which being placed in series with a rubber spring. This allows the damping and stiffness to be controlled independently by the internal damping and the external damping units, respectively. A test bench was established to verify the variable stiffness and damping functionality. The experimental results for variable damping test, variable stiffness test and co-working test are presented. At the amplitude of 10° and the frequency 0.5 Hz, increases of 141.6% and 618.1% are obtained for damping and stiffness separately if the corresponding current increased from 0 to 1 A and from 0 to 2 A, respectively. A mathematical model is then developed and verified to predict the changing of the damping and stiffness. The test results and the simulated model confirm the feasibility of the shock absorber with the ability of varying damping and stiffness simultaneously.
KW - Magnetorheological fluid damper
KW - shock absorber
KW - variable stiffness and damping
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U2 - 10.1177/1045389X19835955
DO - 10.1177/1045389X19835955
M3 - Article
AN - SCOPUS:85062940028
SN - 1045-389X
VL - 30
SP - 1453
EP - 1465
JO - Journal of Intelligent Material Systems and Structures
JF - Journal of Intelligent Material Systems and Structures
IS - 10
ER -