Abstract
The magneto-rheological (MR) damper has been widely explored in the study of vibration suppression for vehicle suspension and constructional systems, etc. Aiming at semi-active controllable hysteretic nonlinear property of the MR damper depending on direct magnetic field, the generation mechanism of conducted and radiated electromagnetic interference (EMI) noises for intelligent vehicle system with MR dampers are initially proposed in this paper, which includes strong nonlinearities arisen from the semi-active control strategy, road surface shock excitations, high-frequency devices in control circuit, environmental electromagnetic (EM) field coupling to excitation coil, and excitation coil impedance mismatch of the MR damper. Upon above studies, both the conducted EMI noise model and the radiated EMI noise model are generally proposed for the MR damper and its control system, and the far field characteristic of radiated EM field generated from excitation coil of the MR damper is further analyzed. The results of simulation and experiment show correctness of the proposed EMI noise models, which will play an important role in future application study for the EMI noise suppression of intelligent vehicle suspension design with MR dampers.
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Yan, W., Wang, E., Zhao, Y., Subhash, R., Su, C. (2012). Modeling of Electromagnetic Interference Noise Mechanism for Magneto-Rheological Damper. In: Su, CY., Rakheja, S., Liu, H. (eds) Intelligent Robotics and Applications. ICIRA 2012. Lecture Notes in Computer Science(), vol 7507. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33515-0_16
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DOI: https://doi.org/10.1007/978-3-642-33515-0_16
Publisher Name: Springer, Berlin, Heidelberg
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