Electromagnetic design of magneto-rheological mount and its open-loop semi-active control

Ling Zheng; Yinong Li; Zhaoxue Deng

doi:10.1117/12.840017

20 October 2009 Electromagnetic design of magneto-rheological mount and its open-loop semi-active control

Ling Zheng, Yinong Li, Zhaoxue Deng

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74934D (2009) https://doi.org/10.1117/12.840017
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

Magneto-Rheological mount is a new type of semi-active and intelligent vibration isolator. It can adjust damping to reduce unwanted vibration from engine by supplying required input currents. The performance of Magneto-Rheological (MR) mount is much better than the conventional rubber mount or hydraulic mount due to its controllability and flexibility. In this paper, a novel MR engine mount with the flow mode-type for a sedan is devised, manufactured and characterized. Some important parameters are optimized to meet the requirements of MR mount by using Electromagnetic design methodology.. Electromagnetic finite element analysis verifies the effectiveness of the magnetic circuit design. The dynamic performances of MR engine mount in frequency domain are investigated experimentally. The results show that the dynamic stiffness and phase lag of MR engine mount can change continuously. They are frequency-dependent. In additional, a open-loop control strategy based on engine rotational speed measurement is proposed and the control system is performed in hardware and software. The experimental and theoretical results identified the effectiveness of such a semi-active vibration isolation system.

Citation Download Citation

Ling Zheng, Yinong Li, and Zhaoxue Deng "Electromagnetic design of magneto-rheological mount and its open-loop semi-active control", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74934D (20 October 2009); https://doi.org/10.1117/12.840017

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