|Table of Contents|

[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]
Copy

Comparison of the vibration isolation performanceof a seat suspension with various design modes()
座椅悬架不同设计模式的隔振性能比较
Share：

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
座椅悬架不同设计模式的隔振性能比较
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
查吉利1;  2;  张建润3;  阮文廉1;  2
1湖北理工学院机电工程学院, 黄石 435003; 2湖北理工学院智能输送技术与装备湖北重点实验室, 黄石 435003; 3东南大学机械工程学院, 南京 211189
Keywords:
seat suspension;  negative stiffness elements;  damping elements;  ride performance;  genetic algorithm
座椅悬架;  负刚度元件;  阻尼元件;  舒适性;  遗传算法
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(xRMS)and driver’s seat(aRMS), 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 xRMS and aRMS, whereas those of the DEs insignificantly influence xRMS and aRMS. 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 xRMS and aRMS. Conversely, the NSEs combined with the damping coefficient of the seat suspension strongly reduce xRMS and aRMS. 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.
为进一步改善车辆座椅乘坐舒适性, 设计了3种分别基于负刚度结构单元(NSE)、阻尼结构单元(DE)及负刚度-阻尼单元(NSDE)的座椅悬架系统.建立了座椅悬架动力学模型, 以悬架位移幅和座椅加速度的均方根值为评价目标, 考察了不同设计参数对座椅乘坐舒适性的影响特性, 并利用遗传算法对悬架设计参数进行了优化分析.研究结果表明:基于NSE和DE单元的悬架设计参数对评价目标的影响较大, 通过参数优化分析发现DE的阻尼力比NSE的恢复力低98.3%, 说明DE结构单元对改善座椅隔振性能作用有限.但引入NSE结构单元后, NSDE悬架系统的振动位移幅和座椅加速度的均方根值明显减小, 有效提升了座椅的隔振效果, 提高了驾驶员的乘坐舒适性.

References:

[1] Hostens I, Deprez K, Ramon H.An improved design of air suspension for seats of mobile agricultural machines[J].Journal of Sound and Vibration, 2004, 276(1/2):141-156.DOI:10.1016/j.jsv.2003.07.018.
[2] Maciejewski I.Control system design of active seat suspensions[J].Journal of Sound and Vibration, 2012, 331(6):1291-1309.DOI:10.1016/j.jsv.2011.11.010.
[3] Liu J, Xu Z, Shao Y, et al.An optimization design method for a body mounting system of a heavy vehicle [J].Journal of Materials:Design and Applications, 2017, 233:1352-1362, DOI:10.1177/1464420717748971.
[4] Wang W, Song Y L, Xue Y B, et al.An optimal vibration control strategy for a vehicle’s active suspension based on improved cultural algorithm[J].Applied Soft Computing, 2015, 28:167-174.DOI:10.1016/j.asoc.2014.11.047.
[5] Nariman-Zadeh N, Salehpour M, Jamali A, et al.Pareto optimization of a five-degree of freedom vehicle vibration model using a MUGA [J].Engineering Applications of Artificial Intelligence, 2010, 23:543-551.DOI:10.1016/j.engappai.2009.08.008.
[6] Nguyen V, Jiao R Q, Zhang J R.Control performance of damping and air spring of heavy truck air suspension system with optimal fuzzy control [J].SAE International Journal of Vehicle Dynamic, Stability, and NVH, 2020, 4:179-194.DOI:10.4271/10-04-02-0013.
[7] Yuan H, Nguyen V L, Zhou H X.Research on semi-active air suspensions of heavy trucks based on a combination of machine learning and optimal fuzzy control [J].SAE International Journal of Vehicle Dynamic, Stability, and NVH, 2021, 5:159-172.DOI:10.4271/10-05-02-0011.
[8] Palomares E, Nieto A J, Morales A L, et al.Numerical and experimental analysis of a vibration isolator equipped with a negative stiffness system[J].Journal of Sound and Vibration, 2018, 414:31-42.DOI:10.1016/j.jsv.2017.11.006.
[9] Davoodi E, Safarpour P, Pourgholi M, et al.Design and evaluation of vibration reducing seat suspension based on negative stiffness structure [J].Part C:Journal of Mechanical Engineering Science, 2020, 234:4171-4189, DOI:10.1177/0954406220921203.
[10] Zha J L, Nguyen V L, Su B B, et al.Performance of the seat suspension system using negative stiffness structure on improving the driver’s ride comfort [J].International Journal of Vehicle Dynamic, Stability, and NVH, 2022, 6:135-146.DOI:10.4271/10-06-02-0009.
[11] Li S H, Feng G Z, Zhao Q.Design and research of semiactive quasi-zero stiffness vibration isolation system for vehicles [J].Shock and Vibration, 2021, 2021:1-22.DOI:10.1155/2021/5529509.
[12] Shi X, Zhu S Y.Simulation and optimization of magnetic negative stiffness dampers[J].Sensors and Actuators A:Physical, 2017, 259:14-33.DOI:10.1016/j.sna.2017.03.026.
[13] Zha J, Nguyen V, Ni D, et al.Optimizing the geometrical dimensions of the seat suspension equipped with a negative stiffness structure based on a genetic algorithm [J].SAE International Journal of Vehicle Dynamic, Stability, and NVH, 2022, 6:147-158.DOI:10.4271/10-06-02-0010.
[14] Georgios P, Artemios V, Dimitrios K.Optimal design of passenger vehicle seat with the use of negative stiffness elements [J].Proc IMechE, Part D:J Automobile Engineering, 2019, 234:610-629, DOI:10.1177/0954407019854879.
[15] Han J S, Meng L S, Sun J G.Design and characteristics analysis of a nonlinear isolator using a curved-mount-spring-roller mechanism as negative stiffness element [J].Mathematical Problems in Engineering, 2018, 2018:1-15, DOI:10.1155/2018/1359461.
[16] Chen L, Wang J, Xu X, et al.Nonlinear analysis of a quasi-zero stiffness air suspension based on the cell-mapping method[J].The International Journal of Acoustics and Vibration, 2021, 26(2):148-160.DOI:10.20855/ijav.2021.26.21755.
[17] Le T D, Ahn K K.A vibration isolation system in low frequency excitation region using negative stiffness structure for vehicle seat[J].Journal of Sound and Vibration, 2011, 330(26):6311-6335.DOI:10.1016/j.jsv.2011.07.039.
[18] International Organization for Standardization.Mechanical vibration and shock-Evaluation of human exposure to whole body vibration-Part 2:General requirement:ISO 2631-1 [S].Geneva, Switzerland:International Organization for Standardization, 1997.
[19] International Organization for Standardization.Mechanical vibration—Road surface profiles—Reporting of measured data:ISO 8068 [S].Geneve, Switzerland:International Organization for Standardization, 1995.
[20] Nguyen V, Zhang J R, Le V Q, et al.Vibration analysis and modeling of an off-road vibratory roller equipped with three different cab’s isolation mounts [J].Shock and Vibration, 2018, 2018:1-17.DOI:10.1155/2018/8527574.
[21] Carletti E, Pedrielli F.Tri-axial evaluation of the vibration transmitted to the operators of crawler compact loaders[J].International Journal of Industrial Ergonomics, 2018, 68:46-56.DOI:10.1016/j.ergon.2018.06.007.

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.
Last Update: 2022-12-20