[1] Zha Jili, Zhang Jianrun, Nguyen Van Liem, et al. Comparison of the vibration isolation performanceof a seat suspension with various design modes [J]. Journal of Southeast University (English Edition), 2022, 38 (4): 363-372. [doi:10.3969/j.issn.1003-7985.2022.04.005]

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Comparison of the vibration isolation performanceof a seat suspension with various design modes()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

38

Issue:

2022 4

Page:

363-372

Research Field:

Traffic and Transportation Engineering

Publishing date:

2022-12-20

Info

Title:

Comparison of the vibration isolation performanceof a seat suspension with various design modes

Author(s):

Zha Jili¹;  2;  Zhang Jianrun³;  Nguyen Van Liem¹;  2

¹School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi 435003, China
²Hubei Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University, Huangshi 435003, China
³School of Mechanical Engineering, Southeast University, Nanjing 211189, China

Keywords:

seat suspension;  negative stiffness elements;  damping elements;  ride performance;  genetic algorithm

PACS:

U461.3

DOI:

10.3969/j.issn.1003-7985.2022.04.005

Abstract:

Three design modes of seat suspension, i.e., negative stiffness elements(NSEs), damping elements(DEs), and negative stiffness-damping elements(NSDEs), are proposed to evaluate the ride performance of a vehicle. Based on a dynamic model of a seat suspension and indexes of the root mean square deformation and acceleration of the seat suspension(x_RMS)and driver’s seat(a_RMS), the influence of the design parameters of the NSEs, DEs, and NSDEs on the driver’s ride comfort is evaluated. A genetic algorithm is then applied to optimize the parameters of the NSEs, DEs, and NSDEs. The study results indicate that the design parameters of the NSEs and NSDEs remarkably influence x_RMS and a_RMS, whereas those of the DEs insignificantly influence x_RMS and a_RMS. Based on the optimal results of the NSEs, DEs, and NSDEs, the damping force of the DEs is 98.3% lower than the restoring force of the NSEs. Therefore, the DEs are ineffective in decreasing x_RMS and a_RMS. Conversely, the NSEs combined with the damping coefficient of the seat suspension strongly reduce x_RMS and a_RMS. Consequently, the NSEs can be added to the seat suspension, and the damping coefficient of the seat suspension can also be optimized or controlled to further enhance the vehicle’s ride performance.

References:

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Memo

Memo:

Biographies: Zha Jili(1980—), male, doctor; Zhang Jianrun(corresponding author), male, doctor, professor, zhangjr@seu.edu.cn.
Foundation items: The National Key Research and Development Plan(No.2019YFB2006402), the Talent Introduction Fund Project of Hubei Polytechnic University(No.19XJK20R), the Key Scientific Research Project of Hubei Polytechnic University(No.22xjz02A).
Citation: Zha Jili, Zhang Jianrun, Nguyen Van Liem. Comparison of the vibration isolation performance of a seat suspension with various design modes[J].Journal of Southeast University(English Edition), 2022, 38(4):363-372.DOI:10.3969/j.issn.1003-7985.2022.04.005.

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