Dynamic Behavior Analysis of the Bus with Two-stage Asymmetric Damper Using the Quarter Car Model Subjected to Transient Road Profile
Corressponding author's email:
thnhan@hcmut.edu.vnDOI:
https://doi.org/10.54644/jte.75A.2023.1282Keywords:
Bus ride comfort, Equivalent damping coefficient, Linear symmetric damper, Two-stage asymmetric damper, Transient Road ProfileAbstract
The influences of two-stage asymmetric damper on the dynamic responses under transient road inputs in range of different vehicle velocities were investigated. This study’s purpose is to get full understanding of the dynamic behavior of the bus using the two-stage asymmetric damper. The body’s vibration acceleration, the tire dynamic load coefficient, and the suspension dynamic deflection were all analyzed to determine how much vibration was conveyed to the bus. By evaluating these criteria, this paper shows how the two-stage asymmetric damper affected an inner-city bus’s vibrational behavior. The transient input was employed in accordance with the GB/T 4970-2009 and IRC-99-1988 standards. For the purposes of the investigation, the two degrees of freedom quarter car model has been employed to carry out the simulation. According to the analysis's findings, a two-stage asymmetric damper maintains the better ride comfort level but offers the bus less handling stability and working space than a linear symmetric one.
Downloads: 0
References
M. J. Griffin, Handbook of Human Vibration, London, U.K.: Academic Press, 1990.
C. A. Lewis and P. W. Johnson, “Whole-body vibration exposure in metropolitan bus drivers,” Occupational Medicine, vol. 62, no. 3, pp. 519-524, 2012, doi: 10.1093/occmed/kqs096.
H. Nahvi, “Evaluation of Whole-Body Vibration and Ride Comfort in a Passenger Car,” International Journal of Acoustics and Vibration, vol. 14, no. 3, pp. 143–149, 2009.
H. Zhao, L. Guo, and X. Y. Zeng, “Evaluation of Bus Vibration Comfort Based on Passenger Crowdsourcing Mode,” Mathematical Problems in Engineering, 2016, doi: 10.1155/2016/2132454.
R. Peceliunas, O. Lukoševiciene, and O. Prentkovskis, “A mathematical model of the vibrating system equivalent to the vehicle in the mode of emergency braking,” Transport, vol. 18, no. 3, pp. 136–142, 2003.
D. Sekulić and V. Dedović, “The effect of stiffness and damping of the suspension system elements on the optimization of the vibrational behaviour of a bus,” International Journal for Traffic and Transport Engineering, vol. 1, no. 4, pp. 231-244, 2011.
D. Sekulić, V. Dedović, and S. Rusov, “Analysis of vibration effects on the comfort of intercity bus users by oscillatory model with ten degrees of freedom,” Applied Mathematical Modelling, vol. 37, pp. 8629-8644, 2013, doi: 10.1016/j.apm.2013.03.060.
A. Seifi et al., “Optimum design for passive suspension system of a vehicle to prevent rollover and improve ride comfort under random road excitations,” SAGE Journals, vol. 230, no. 4, 2016, doi: 10.1177/1464419315618034.
J. Kasprzak. Understanding your Dampers-A guide from Jim Kasprzak. (2022). Accessed: Jul. 15, 2014. [Online]. Available: www.kaztechnologies.com.
L. Zhao et al., “Simulation of vertical characteristics and inwheel motor vibration of electric vehicles with asymmetric suspension damper under road impact,” International Journal of Modelling and Simulation, vol. 39, no. 1, pp. 14-20, 2019, doi: 10.1080/02286203.2018.1468991.
M. Silveira et al., “Use of nonlinear asymmetrical shock absorber to improve comfort on passenger vehicles,” Journal of Sound and Vibration, vol. 333, pp. 2114-2129, 2014, doi: 10.1016/j.jsv.2013.12.001.
T. P. Phalke and A. C. Mitra, “Analysis of Ride comfort and Road holding of Quarter car model by SIMULINK,” in 5th International Conference of Materials Processing and Characterization, 2017, pp. 2425–2430.
R. N. Jazar, Vehicle Dynamics: Theory and Application, Springer, 2008, pp. 742-894.
Balike et al., “Optimal synthesis of a two-stage asymmetric damper of an automotive suspension considering wheel camber variations,” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, vol. 225, no. 8, 2011, doi: 10.1177/0954407011404294.
Method of running test-Automotive ride comfort, GB/T 4970-2009, National Automotive Standardization Technical Committee, China, 2009.
The Indian Roads Congress, IRC-99-1988, (1996), Tentative Guidelines on the Provision of Speed Breakers for Control of Vehicular Speeds on Minor Roads.
Balike et al., “Influence of automotive damper asymmetry on the kinematic and dynamic responses, and optimal damper asymmetric parameters,” Int. J. Vehicle Des., vol. 54, no. 3, pp. 191–216, 2010.
J. C. Dixon, The Shock Absorber Handbook, John Wiley & Sons, 2007, p. 264.
Downloads
Published
How to Cite
Issue
Section
Categories
License
Copyright (c) 2023 Journal of Technical Education Science
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright © JTE.
