Vibration Simulation and Damping Ratio Optimization of Seat Suspension System for High-Speed Rail

doi:10.16182/j.issn1004731x.joss.201803031

Abstract

Abstract: According to the 1/4 body-seat vertical vibration model of high-speed rail, an optimal design simulation model for damping ratio of seat suspension was established. An optimal design mathematical model for damping ratio of seat suspension was built with the optimal ride comfort as the target. Taking the track vertical irregularity as input and the seat suspension vertical stroke as constraint condition, an optimization design method for damping ratio of seat suspension based on track excitation was presented. With a practical example, the damping ratio was designed and validated by simulation. The results show that the damping ratio value design method can effectively improve ride comfort.

Key words: high-speed rail, seat suspension, damping ratio, optimization design, vibration simulation

CLC Number:

U260.1

Zhou Changcheng, Yu Yuewei, Zhao Leilei. Vibration Simulation and Damping Ratio Optimization of Seat Suspension System for High-Speed Rail[J]. Journal of System Simulation, 2018, 30(3): 1016-1022.

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