Title: Designing and optimising seat's new suspension using TPS-NSS to enhance driver's comfort

Authors: Li Zhang; Vanliem Nguyen; Hui Zan

Addresses: School of Mechanical and Electrical Engineering, Jiaozuo University, Jiaozuo, Henan 454000, China ' School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi, 435003, China ' School of Mechanical and Electrical Engineering, Jiaozuo University, Jiaozuo, Henan 454000, China

Abstract: Based on the isolation efficiency of negative-stiffness-structures (NSS) in vertical direction and three parallel suspensions (TPS) in the pitch and roll directions, a seat's new suspension combined with TPS and NSS (TPS-NSS) has been proposed for enhancing ride quality in three directions of driver. In order to further enhance TPS-NSS performance, genetic algorithm is also applied for optimising its design parameters. Root mean square (RMS) acceleration of driver's seat in vertical, pitch, and roll directions is used to assess the TPS-NSS's isolation efficiency. The results indicate that all RMS seat accelerations with TPS-NSS are strongly improved by 29.08%, 85.75%, and 91.25% compared to the NSS. Therefore, based on the TPS-NSS's good isolation and simple structure, this new isolation model should be equipped in the seat suspension for enhancing driver's ride quality in vehicles.

Keywords: seat's new suspension; TPS-NSS; three parallel suspensions-negative-stiffness-structures; driver's comfort; vehicle vibration model.

DOI: 10.1504/IJVSMT.2024.140492

International Journal of Vehicle Systems Modelling and Testing, 2024 Vol.18 No.2, pp.97 - 119

Received: 26 Jun 2023
Accepted: 13 Nov 2023
Published online: 20 Aug 2024 *

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