This article illustrates the modeling and design of electromechanical shock absorbers for automotive applications. Relative to the commonly used hydraulic shock absorbers, electromechanical ones are based on the use of linear or rotative electric motors. If electric motor is of the DC-brushless type, the shock absorber can be devised by shunting its electric terminals with a resistive load. The damping force can be modified by acting on the added resistance. An integrated design procedure of the electrical and mechanical parameters is presented in the article. The dynamic performance that can be obtained by a vehicle with electromechanical dampers is verified on a quarter car model.
Electromagnetic Shock Absorbers for Automotive Suspensions: Electromechanical Design
Amati, N, Canova, A, Cavalli, F, Carabelli, S, Festini, A, Tonoli, A, & Caviasso, G. "Electromagnetic Shock Absorbers for Automotive Suspensions: Electromechanical Design." Proceedings of the ASME 8th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Automotive Systems, Bioengineering and Biomedical Technology, Fluids Engineering, Maintenance Engineering and Non-Destructive Evaluation, and Nanotechnology. Torino, Italy. July 4–7, 2006. pp. 131-140. ASME. https://doi.org/10.1115/ESDA2006-95339
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