Investigation of Equivalent Unsprung Mass and Nonlinear Features of Electromagnetic Actuated Active SuspensionReport as inadecuate




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Shock and Vibration - Volume 2015 2015, Article ID 624712, 8 pages -

Research Article

Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China

School of Automotive Studies, Tongji University, Shanghai 201804, China

Received 5 May 2015; Revised 4 August 2015; Accepted 9 August 2015

Academic Editor: Rafał Burdzik

Copyright © 2015 Jun Yin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Electromagnetic actuated active suspension benefits active control and energy harvesting from vibration at the same time. However, the rotary type electromagnetic actuated active suspension introduces a significant extra mass on the unsprung mass due to the inertia of the rotating components of the actuator. The magnitude of the introduced unsprung mass is studied based on a gearbox type actuator and a ball screw type actuator. The geometry of the suspension and the actuator also influence the equivalent unsprung mass significantly. The suspension performance simulation or control logic derived should take this equivalent unsprung mass into account. Besides, an extra force should be compensated due to the nonlinear features of the suspension structure and it is studied. The active force of the actuator should compensate this extra force. The discovery of this paper provides a fundamental for evaluating the rotary type electromagnetic actuated active suspension performance and control strategy derived as well as controlling the electromagnetic actuated active suspension more precisely.





Author: Jun Yin, Xinbo Chen, Jianqin Li, and Lixin Wu

Source: https://www.hindawi.com/



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