Affiliations: School of Electrical & Automation Engineering, Nanjing Normal University, Nanjing, Jiangsu, China
Correspondence:
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Corresponding author: Wei Yan, School of Electrical & Automation Engineering, Nanjing Normal University, Nanjing, Jiangsu, China. E-mail:61197@njnu.edu.cn
Abstract: The controllable magneto-rheological
damper has been widely used in vibration mitigation system, such as vehicle
suspension and aerospace landing gear, which is subjected to the direct
magnetic field based on the magneto-rheological damper controller under
semi-active control strategy. Due to the displacement vibration and
semi-active control strategy, conducted electromagnetic noises are generated
through the power supply. In the paper, the conducted electromagnetic
interference noise mechanism and model are proposed for the
magneto-rheological damper with semi-active control strategy based on the
theoretical and simulation analysis. Then, a novel smoothing algorithm is
designed to reduce the above conducted electromagnetic interference noises.
The simulation and experiment results show that conducted electromagnetic
interference noises can be suppressed 2-8 dBμ V by employing the present
smoothing algorithm and comply with EN 55022, thus it can support the
development, application and safety & electromagnetic compatibility
design for the MRD device.
