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Study on the Influence of Different Factors on Heavy Truck Ride Comfort
Technical Paper
2016-01-0440
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The ride comfort of heavy trucks is related to many factors, which include vehicle operating scenarios and vehicle structure parameters. An investigation of the influence of different factors on the ride comfort of heavy trucks was conducted. Based on the elastic theory of a uniform Euler-Bernoulli beam with both ends free, a 6 degree of freedom (DOF) half rigid-elastic vibration model of the vertical dynamic response was developed. The rigid-elastic model is more suitable to describe the actual movement of heavy trucks. The DOFs include vertical displacements of the body and each of two axles, the pitch displacement of the body, and the first and second order bending displacements of the body.
The root mean square (RMS) values of body accelerations, dynamic deflections and relative dynamic loads form the evaluation index. Based on the rigid-elastic model, the influence of different factors on the ride comfort of heavy trucks is analyzed in the frequency domain. The results are as follows: (1) the vehicle speed has a large influence on the ride comfort of heavy trucks, and the ride comfort decreases with increased speed; (2) the influence of the road grade on the ride comfort of heavy trucks is immense, and the ride comfort decreases as the road profile worsens; (3) the influence of suspension parameters on the ride comfort of heavy trucks is very large and complex; (4) the tire stiffness has a great influence on body accelerations and relative dynamic loads and has a relatively small influence on dynamic deflections; (5) the body stiffness has a great influence on the ride comfort, as it mainly affects body accelerations, and greater body accelerations are related to lower body stiffness; (6) the load has a tremendous influence on body accelerations and relative dynamic loads and a relatively small influence on dynamic deflections, and the ride comfort decreases with smaller loads.
Authors
Citation
Jie, L., Wenzhu, W., Xiong, G., and Zhenwei, Z., "Study on the Influence of Different Factors on Heavy Truck Ride Comfort," SAE Technical Paper 2016-01-0440, 2016, https://doi.org/10.4271/2016-01-0440.Also In
References
- Elmadany , M. M. , Dokainish , M. A. , Allan , A. B. Ride Dynamics of Articulated Vehicles-A Literature Survey Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility 8 4 287 316 1979 10.1080/00423117908968609
- Ellis , J. R. The ride and handling of semitrailer articulated vehicle Automobile Engineering 26 523 529 1966
- Gillespie , T. Heavy Truck Ride SAE Technical Paper 850001 1985 10.4271/850001
- Cole , D. J. , Cebon . D. Spatial Repeatability of Dynamic Tyre Force Generated by Heavy Vehicles Proceedings of the Institution of Mechanical Engineers, Part D, Journal of Automobile Engineering 206 3 17 27 1993
- Zhou , J. Ride simulation of a nonlinear tractor-trailer combination using the improved statistical linearization technique Heavy Vehicle Systems, Special Series, Int. J. of Vehicle Design 5 2 149 166 1998
- Walther , W. , Gossard , D. , and Fensel , P. Truck Ride - A Mathematical and Empirical Study SAE Technical Paper 690099 1969 10.4271/690099
- Dokainish , M. A. , EIMadany , M. M. Random responses of tractor-semitrailer system Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility 9 2 87 112 1980
- Xie , W. G. , Wang , H. X. Ride Comfort Analysis of Semitrailer-train Automotive Engineering 15 6 363 370 1993
- He , R. , Li , L. Prediction and analysis of the easement of heavy tractor Mechanical Design 25 3 56 59 2008
- Le , V. Q. , Zhang , J. Z. , Wang , Y. , and Sun , X. J. Influence of heavy truck dynamic parameters on ride comfort using 3D dynamic model Journal of Southeast University 43 4 763 770 2013 10.3969/j.issn.1001- 0505. 2013. 04. 017
- Ibrahim , I. M. , Crolla , D. A. , and Barton , D. C. Effect of frame flexibility on the ride vibration of trucks Computers and Structures 58 4 709 713 1996
- Ibrahim , I. M. , El-Maddah , M.H. Influence of frame flexibility and fifth wheel constraints on the ride behaviour of articulated semi-trailer systems AMME, Applied Mechanics and Mechanical Engineering Conference (Third international) 1996
- Jie , L. , Wenzhu , W. , and Xiong , G. Comparative Analysis of Truck Ride Comfort of 4 Degree of Freedom Rigid-Elastic Model with 2 Degree of Freedom Rigid Model SAE Technical Paper 2015-01-0615 2015 10.4271/2015-01-0615
- Rao , S.S. Mechanics Vibrations Prentice Hall Press 2011
- Thomson , W. T. , Dahleh , M. D. Theory of vibration with applications Tsinghua University Press 2005
- Qin , Y. Y. New methods of modeling and simulation and their applications to automobile ride comfort The College of Automotive Engineering, Jilin University 2009
- Yu , Z.S. Automobile theory Mechanical Industry Press 2000
- Wong , J.Y Theory of ground vehicle John Wiley & Sons Inc 2001