期刊
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
卷 83, 期 -, 页码 371-384出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2016.06.020
关键词
Variable stiffness and damping; MRF unit; MRE unit; Modelling
资金
- ARC [150102636, 140100303, 150100040]
- University of Wollongong [201206430031]
- China Scholarship Council [201206430031]
- Grants-in-Aid for Scientific Research [16H04288] Funding Source: KAKEN
This paper reports an isolator whose damping and stiffness can be simultaneously controlled by magnetorheological (MR) fluids and MR elastomers. A hydraulically actuated MTS machine was used to test this variable stiffness and damping isolator after its prototype. The field-dependent responses including stiffness variability and damping variability, together with the amplitude-dependent response and frequency-dependent responses were separately tested and analyzed successively. The experimental results prove the successful implementation of the as-designed MRE-F isolator with obvious variable damping and stiffness. A new phenomenological model incorporating Bingham model and four-parameter model was developed to describe the dynamic properties of the isolator. The successful development, experimental testing, and modelling of this innovative variable stiffness and damping isolator make the concept of variable stiffness and damping become feasible. (C) 2016 Elsevier Ltd. All rights reserved.
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