A new design of the seat suspension of the vehicles using the NSS: Part 1-Dimensionless characteristic of the NSS

A new design of the seat suspension of the vehicles using the NSS: Part 1-Dimensionless characteristic of the NSS

Authors

  • Haohan Yang School of Mechanical and Electrical Engineering, Hubei Polytechnic University
  • Vanliem Nguyen School of Mechanical and Electrical Engineering, Hubei Polytechnic University
  • Wenjie Liu School of Mechanical and Electrical Engineering, Hubei Polytechnic University
  • Jun Chen School of Mechanical and Electrical Engineering, Hubei Polytechnic University

Abstract

Based on the dynamics theory and the negative stiffness structure (NSS), the new design of the driver's seat suspension of the cab or vehicle added by the NSS is proposed to enhance the isolation performance of the driver's ride suspension. To design the driver's seat suspension added by the NSS, the dynamic models of the NSS and driver's seat suspension are then established to calculate the vibration equations. The influence of the design parameters of the NSS and driver's seat suspension on the isolation performance of the driver's seat suspension is simulated and analyzed based on the dimensionless characteristic of the restoring force and displacement of the driver's seat suspension system. The research results show that the dimensionless characteristic of the restoring force and displacement of the driver's seat suspension added by the NSS is greatly affected by the geometrical ratios (a1 and a2) and stiffness ratio (b) of the NSS. To improve the ride comfort of the driver's seat, the ratios of a1 = 0.6, a2 = 1.2, and b = 0.6 should be applied for the design process of the driver's seat suspension equipped with the NSS.

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Published

2022-10-12

Issue

Vol. 2 No. 1 (2022)

Section

Articles