Calculating method of vehicle dynamic load caused by uneven pavement

CAO Yuan-wen; LIANG Nai-xing; YU Qing; WU Yong

Volume 8 Issue 2

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CAO Yuan-wen, LIANG Nai-xing, YU Qing, WU Yong. Calculating method of vehicle dynamic load caused by uneven pavement[J]. Journal of Traffic and Transportation Engineering, 2008, 8(2): 69-73.

Citation:

CAO Yuan-wen, LIANG Nai-xing, YU Qing, WU Yong. Calculating method of vehicle dynamic load caused by uneven pavement[J]. Journal of Traffic and Transportation Engineering, 2008, 8(2): 69-73.

CAO Yuan-wen, LIANG Nai-xing, YU Qing, WU Yong. Calculating method of vehicle dynamic load caused by uneven pavement[J]. Journal of Traffic and Transportation Engineering, 2008, 8(2): 69-73.

Citation:

CAO Yuan-wen, LIANG Nai-xing, YU Qing, WU Yong. Calculating method of vehicle dynamic load caused by uneven pavement[J]. Journal of Traffic and Transportation Engineering, 2008, 8(2): 69-73.

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Calculating method of vehicle dynamic load caused by uneven pavement

1.
School of Mechatronics and Automotive Engineering, Chongqing Jiaotong University, Chongqing 400074, China
2.
School of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing 400074, China
3.
School of Civil Engineering, Ludong University, Yantai 264025, Shandong, China

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Author Bio:
Cao Yuan-wen(1963-), female, professor, +86-23-62652897, caoyw@cquc.edu.cn
Received Date: 2007-08-06
Publish Date: 2008-04-25

Abstract

Abstract

In order to analyze the dynamic load character of vehicle running on uneven pavement, the surface of pavement was simulated by using sinusoid according to the evenness measure result of Xi-Bao freeway, a four-free-degree model of vehicle vibration was set when vehicle lean factor and tire damping were considered, a calculating method of vehicle dynamic load was presented through analyzing and solving vehicle vibration problem by using modal theory and programming calculation, when the left and right wheels of vehicle were not impelled at the same time, and vehicles ran at different speeds on different pavement models with different wavelengthes and amplitudes.Calculation result indicates that vehicle dynamic load caused by waveform pavement shows waveform distribution in longitudinal direction, vehicle running on uneven pavement may produce great dynamic load, and the maximum coefficient of dynamic load is above 2.0.
- interaction of vehicle and pavement,
- vehicle dynamic load,
- four-free-degree vibration model,
- pavement evenness

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References(13)

References

[1]	Zhong Yang, Wang Zhe-ren, Zhang Xiao-ning. Random dynamic pressure of moving vehicle on rough pavement[J]. China Journal of Highway and Transport, 1992, 5(2): 40-43. (in Chinese)
[2]	Sun Lu, Deng Xue-jun. Analysis of pavement wave number spectral density and random dynamic pressure generated by vehicle-pavement interactions[J]. Journal of Xi'an Highway University, 1996, 16(2): 19-23. (in Chinese)
[3]	Hou Yun, Guo Zhong-yin, Tian Bo, et al. Dynamic deflection response of layered pavement structure subjected to dynamic load[J]. China Journal of Highway and Transport, 2002, 15(3): 6-10. (in Chinese)
[4]	Niu Jun-chuan, Sun Ling-ling, Zhang Wei-bo, et al. Characteristic analysis of four-DOF suspension under randomly profiled road input[J]. China Journal of Highway and Transport, 2003, 16(4): 106-110. (in Chinese)
[5]	Ren Wei-qun, Zhang Yun-qing, Jin Guo-dong. Systematic research method for vehicle-gencrated road damaget[J]. China Journal of Highway and Transport, 2005, 18(4): 110-114. (in Chinese)
[6]	Li Yi-nong, Zheng Ling. Nonlinear conter of automotire semi-actire suspensions based on differertial geomerty theory[J]. China Journal of Highway and Transport, 2005, 18(1): 109-112. (in Chinese)
[7]	Chiu L. Vehicle-road interaction, evolution of road profiles and present serviceabilityindex[J]. Road Materials and Pavement Design, 2000, 16(1): 56-61.
[8]	梁乃兴, 曹源文, 于清. 路面不平整引起的动荷载及其对路面破坏作用的研究[R]. 重庆: 重庆交通学院, 2003.
[9]	Sun Lu, Deng Xue-jun. Predicting vertical dynamic loads caused by vehicle-pavement interaction[J]. Journal of Transportation Engineering, 1998, 124(5): 470-478.
[10]	余志生. 汽车理论[M]. 北京: 机械工业出版社, 2003.
[11]	Cao Yuan-wen, Liang Nai-xing, Xu Jian-ping. Calculation of pavement evenness under dynamic load of moving vehicle[J]. Journal of Chang'an University: Natural Science Edition, 2004, 24(4): 22-25. (in Chinese)
[12]	Lu Peng-min, He Li-mei, You Jin-min. Optimization of vehicle suspension parameters based on comfort and tyre dynamic load[J]. China Journal of Highway and Transport, 2007, 20(1): 112-117. (in Chinese)
[13]	吴勇. 路面剩余寿命预估[D]. 重庆: 重庆交通大学, 2006.