Abstract
Methods have been developed to reduce the side load and friction force acting on the shock absorber inherent in the MacPherson strut system, popularly used in vehicle suspension systems. Reducing this friction force is one of the most important issues in improving the ride comfort of a car. The side load of the shock absorber can be reduced by controlling the force line of the coil spring. To reduce the side load, we designed an S-shaped coil spring. For the design of the side load spring, we also developed an analytical process, which utilizes finite element analysis and mechanical system analysis. All analysis results for the stiffness, stress, fatigue life, and spring force line were validated through experiments.
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This paper was recommended for publication in revised form by Associate Editor Kyongsu Yi
Young-Il Ryu received his B.S. in Mechanical and Automotive Engineering from Kookmin University in 2002. He then received his M.S. degree from the Graduate School of Automotive Engineering in Kookmin University in 2004. He is currently a Ph.D. candidate at the graduate school. His research interests include vehicle dynamics, multi-body dynamics, and durability.
Seung-Jin Heo received his M.S. in Mechanical Design from Seoul National University in 1981. He then received his Ph.D. in Automotive Engineering from Technical University of Aachen in 1987. He is currently a professor at Kookmin University. His research interests include vehicle passive & active safety, vehicle control, vehicle dynamics, and durability.
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Ryu, Y.I., Kang, D.O., Heo, S.J. et al. Development of analytical process to reduce side load in strut-type suspension. J Mech Sci Technol 24, 351–356 (2010). https://doi.org/10.1007/s12206-009-1103-z
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DOI: https://doi.org/10.1007/s12206-009-1103-z