[1] Nguyen Van Liem, Zhang Jianrun, Lu Xi, et al. Low-frequency ride comfort of vibratory rollersequipped with cab hydro-pneumatic mounts [J]. Journal of Southeast University (English Edition), 2020, 36 (3): 278-284. [doi:10.3969/j.issn.1003-7985.2020.03.005]

Copy

Low-frequency ride comfort of vibratory rollersequipped with cab hydro-pneumatic mounts()

Share：

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

Volumn:

36

Issue:

2020 03

Page:

278-284

Research Field:

Traffic and Transportation Engineering

Publishing date:

2020-09-20

Info

Title:

Low-frequency ride comfort of vibratory rollersequipped with cab hydro-pneumatic mounts

Author(s):

Nguyen Van Liem¹;  2;  Zhang Jianrun¹;  Lu Xi¹;  Huang Dacheng¹

¹School of Mechanical Engineering, Southeast University, Nanjing 211189, China
²School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi 435003, China

Keywords:

vibratory roller;  quality ride;  hydro-pneumatic mount;  low-frequency vibrations

PACS:

U461.3

DOI:

10.3969/j.issn.1003-7985.2020.03.005

Abstract:

Based on the advantages of hydraulic and pneumatic mounts, a new hydro-pneumatic mount(HPM)is proposed to improve the low-frequency ride comfort of vibration rollers. Through the experiment of the vibratory roller, a nonlinear vehicle dynamic model working on off-road soil grounds is then established to assess the HPM’s ride comfort in the low-frequency region. Two indices, the power spectral density(PSD)acceleration and root mean square(RMS)acceleration of the operator vibration and cab shaking, are chosen as objective functions in both the frequency and time regions. The research results show that when the cab isolations are equipped with the HPM, the RMS values of the operator’s seat, cab’s pitch and roll angles are reduced by 35%, 42% and 53%; and the maximum PSD of the operator’s seat, cab’s pitch and roll angles are decreased by 39%, 59% and 65%, respectively. Consequently, the characteristics of the nonlinear damper and high-static stiffness of HPM can greatly reduce the operator vibration and cab shaking in the low-frequency region when compared to the vibratory roller’s cab using the rubber mounts.

References:

[1] Nguyen V L, Zhang J R, Hua W L, et al. Ride quality evaluation of the vibratory roller cab supplemented by auxiliary hydraulic mounts via simulation and experiment [J]. Journal of Southeast University(English Edition), 2019, 35(3): 273-280. DOI: 10.3969/j. issn.1003-7985. 2019. 03.001.
[2] Kordestani A, Rakheja S, Marcotte P, et al. Analysis of ride vibration environment of soil compactors[J]. SAE International Journal of Commercial Vehicles, 2010, 3(1): 259-272. DOI:10.4271/2010-01-2022.
[3] Wong J Y. Data processing methodology in the characterization of the mechanical properties of terrain[J].Journal of Terramechanics, 1980, 17(1): 13-41. DOI:10.1016/0022-4898(80)90014-2.
[4] Adam D, Kopf F. Theoretical analysis of dynamically loaded soils [C]//Proceedings of European Workshop Compaction of Soils and Granular Materials. Paris, France, 2000: 207-220.
[5] Jiao G. Vibration simulation and optimization of cab’s vibration isolation system of vibratory roller [D]. Nanjing: Southeast University, 2010.(in Chinese)
[6] de Temmerman J, Deprez K, Hostens I, et al. Conceptual cab suspension system for a self-propelled agricultural machine: Part 2: Operator comfort optimisation[J]. Biosystems Engineering, 2005, 90(3): 271-278. DOI:10.1016/j.biosystemseng.2004.08.007.
[7] Li J Q, Zhang Z F, Xu H G, et al. Dynamic characteristics of the vibratory roller test-bed vibration isolation system: Simulation and experiment[J]. Journal of Terramechanics, 2014, 56: 139-156. DOI:10.1016/j.jterra.2014.10.002.
[8] Sun X J, Zhang J R. Performance of earth-moving machinery cab with hydraulic mounts in low frequency[J]. Journal of Vibration and Control, 2014, 20(5): 724-735. DOI:10.1177/1077546312464260.
[9] Lee P, Vogt J, Han S Z. Application of hydraulic body mounts to reduce the freeway hop shake of pickup trucks[C]//SAE Technical Paper Series. Warrendale, PA, USA: SAE International, 2009. DOI:10.4271/2009-01-2126.
[10] Jiao S J, Wang Y, Zhang L, et al. Shock wave characteristics of a hydraulic damper for shock test machine[J]. Mechanical Systems and Signal Processing, 2010, 24(5): 1570-1578. DOI:10.1016/j.ymssp.2009.12.005.
[11] Sundvall P. Comparisons between predicted and measured ride comfort in trains-a case study on modeling[R]. Stockholm, Sweden: Department of Vehicle Engineering, Royal Institute of Technology, 2001.
[12] Presthus M. Derivation of air spring model parameters for train simulation[D]. Lulea, Sweden: Lulea University of Technology, 2002.
[13] Abid H J, Chen J, Nassar A A. Equivalent air spring suspension model for quarter-passive model of passenger vehicles[J]. International Scholarly Research Notices, 2015, 2015: 1-6. DOI:10.1155/2015/974020.
[14] Yan J, Yin Z, Guo X X, et al. Fuzzy control of semi-active air suspension for cab based on genetic algorithms[C]//SAE Technical Paper Series. Warrendale, PA, USA: SAE International, 2008:1-11. DOI:10.4271/2008-01-2681.
[15] Tang G, Zhu H J, Zhang Y Q, et al. Studies of air spring mathematical model and its performance in cab suspension system of commercial vehicle[C]//SAE Technical Paper Series.Warrendale, PA, USA:SAE International, 2015: 341-348. DOI:10.4271/2015-01-0608.
[16] Nguyen V, Zhang J R, Le V, 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.
[17] International Organization for Standardization. ISO 2631-1 Mechanical vibration and shock-Evaluation of human exposure to whole body vibration—Part 1: General requirements [S]. Geneve, Switzerland: International Organization for Standardization, 1997.
[18] Seo J U, Yun Y W, Park M K. Magneto-rheological accumulator for temperature compensation in hydropneumatic suspension systems[J]. Journal of Mechanical Science and Technology, 2011, 25(6): 1621-1625. DOI:10.1007/s12206-011-0414-z.
[19] Ali D, Frimpong S. Artificial intelligence models for predicting the performance of hydro-pneumatic suspension struts in large capacity dump trucks[J]. International Journal of Industrial Ergonomics, 2018, 67: 283-295. DOI:10.1016/j.ergon.2018.06.005.
[20] Berg M. A three-dimensional airspring model with friction and orifice damping[J]. Vehicle System Dynamics, 1999, 33(sup1): 528-539. DOI:10.1080/00423114.1999.12063109.

Memo

Memo:

Biographies: Nguyen Van Liem(1986—), male, doctor; Zhang Jianrun(corresponding author), male, doctor, professor, zhangjr@seu.edu.cn.
Foundation items: The National Key Research and Development Plan(No.2019YFB2006402), Talent Introduction Fund Project of Hubei Polytechnic University(No.19XJK17R), the Joint Key Project Founded by Southeast University and Nanjing Medical University(No.2019DN0011).
Citation: Nguyen Van Liem, Zhang Jianrun, Lu Xi, et al. Low-frequency ride comfort of vibratory rollers equipped with cab hydro-pneumatic mounts[J].Journal of Southeast University(English Edition), 2020, 36(3):278-284.DOI:10.3969/j.issn.1003-7985.2020.03.005.

Common functions