基于车桥耦合振动的车辆舒适性分析

王贵春1,李武生2

振动与冲击 ›› 2016, Vol. 35 ›› Issue (8) : 224-230.

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PDF(1984 KB)
振动与冲击 ›› 2016, Vol. 35 ›› Issue (8) : 224-230.
论文

基于车桥耦合振动的车辆舒适性分析

  • 王贵春1,李武生2
作者信息 +

The Analysis on the Vehicle Ride Comfort Based on  Vehicle-bridge Coupled Vibration

  • WANG Gui-chun 1,LI Wu-sheng2
Author information +
文章历史 +

摘要

研究车桥耦合振动引起的车辆舒适性问题对合理设计桥梁结构,从而减小车桥耦合振动响应和提高司乘人员的乘坐质量具有重要意义。分别利用有限元法和达郎伯原理建立了大跨度公路斜拉桥三维模型和9个自由度的车辆空间模型。通过位移和力的协调条件将车桥两个子系统耦合起来,求解车桥系统的振动微分方程。基于计算机软件ANSYS中的APDL语言编写了求解振动微分方程迭代计算的命令流,以ISO2631-1―1997标准建立了评价车辆舒适性的方法,并据此分析了主跨为550m的福建长门大桥在多车辆通过时考虑不同车速和车重时的车辆动力响应和车辆舒适性。计算结果表明,随着车速的增加,车辆的动力响应增加,舒适性变差;而随着车重的增加,车辆的动力响应减小,舒适性变好。

Abstract

It is of significance to study the problem of vehicle comfort due to vehicle-bridge coupled vibration for reasonably designing the bridge structure, and then decreasing the response of vehicle-bridge coupled vibration and improving the ride quality of driver and conductors. A 3 dimensional model of highway cable-stayed bridge with long span and a vehicle spatial model with 9 degrees of freedom are respectively established according to finite element method and D’Alembert theory. The two subsystems of vehicle and bridge are coupled by compatible conditions of displacement and force to solve the vibration differential equations of vehicle-bridge coupled system. The iterative calculation command stream to solve coupled vibration differential equations of vehicle-bridge system is compiled by APDL language in computer software ANSYS. The method to evaluate the vehicle ride comfort is established according to the criteria in ISO2631-1―1997. The vehicle dynamic responses and ride comfort are analyzed considering different vehicle speed and vehicle gravity when multiple vehicles pass the Fujian Changmen cable-stayed bridge with main span of 500m. The results calculated indicate that the dynamic responses of vehicles increase with the increment of vehicle speed, resulting in the vehicle ride comfort to be worse; the dynamic responses of vehicles decrease with the increment of vehicle gravity, bring about the vehicle ride comfort to be better.  
 
 

关键词

汽车工程 / 舒适性 / 车辆 / 斜拉桥 / 有限元法 / 车桥耦合振动

Key words

automobile engineering / ride comfort / vehicle / cable-stayed bridge / finite element method / vehicle-bridge coupled vibration。

引用本文

导出引用
王贵春1,李武生2. 基于车桥耦合振动的车辆舒适性分析[J]. 振动与冲击, 2016, 35(8): 224-230
WANG Gui-chun 1,LI Wu-sheng2. The Analysis on the Vehicle Ride Comfort Based on  Vehicle-bridge Coupled Vibration[J]. Journal of Vibration and Shock, 2016, 35(8): 224-230

参考文献

[1]  Oliva J, Goicolea J M, Antolin P. “Relavance of a complete road surface description in vehicle-bridge interaction dynamics[J]. Engineering structure, 2013,vol.56: 466-476.
[2]  Fryba L,Yau J D. Suspended bridges subjected to moving loads and support motions due to earthquake[J]. Journal Of Sound and Vibration, 2009, 319(1-2): 218-227.
[3]  C.S. Cai, Shi X M,Araujo M et al. Effect of approach span condition on vehicle-induced dynamic response of slab-on-girder road bridges[J]. Engineering Structures, 2007, 29(12):3210-3226.
[4]  Wu S Q,Law S S.Dynamic analysis of bridge-vehicle system with uncertainties based on the finite element model[J].Probabilistic Engineering Mechanics,2010,25( 4): 425-432.
[5]  Kim C W, Kawatani M, Kim K B. Three dimensional dynamic analysis for bridge-vehicle interaction with road roughness[J]. Computers & Structures, 2005, 83(19-20):1627-1645.
[6]  Moghin H, Ronagh H R. Development of a numerical model for bridge-vehicle interaction and human response to traffic-induced vibration [J].  Engineering Structures, 2008,30(12): 3808-3819.
[7]  胡振东,王华林. 高速车辆过桥时的舒适性分析[J]. 振动与冲击,2002,21(4):104-105,103.
HU Zhen-dong, WANG Hua-lin. Analysis of Comfort properties for high-speed vehicle moving over bridge[J]. Journal of Vibration and Shock, 2002,21(4):104-105,103.
[8]  Y. L. Xu, W. H. Guo. Effects of bridge motion and crosswind on ride comfort of road vehicles[J]. Journal of Wind Engineering and Industrial Aerodynamics[J]. 2004, 92(7-8): 641-662.
[9]  韩万水,陈艾荣.风环境下大跨度斜拉桥上的车辆驾驶舒适性评价[J].中国公路学报,2008,21(2):54~60.
HAN Wan-shui, Chen Ai-rong. Ride comfort assessment of vehicles running on long-span bridge under crosswind[J]. China Journal of Highway and Transport, 2008, 21(2): 54-60.    
 [10] 韩万水,陈艾荣. 侧风与桥梁振动对车辆行驶舒适性影响的研究[J]. 土木工程学报,2008,41(4):55-60.
HAN Wan-shui, Chen Ai-rong. Effects of crosswind and bridge motion on ride comfort of road vehicles[J]. China Civil Engineering Journal, 2008, 41(4): 55-60.
[11]  Zhang Y W, Zhao Y, Zhang Y H et al. Comfort optimization of railway trains based on pseudo-excitation method and symplectic method[J]. Journal Of Sound and Vibration, 2013, 332(21): 5255-5270.
[12]  胡昌斌,孙增华.路面板固化翘曲对车辆动荷载和行驶舒适性的影响[J].振动与冲击,2014,33(23):1-8.
HU Chang-bin, SUN Zeng-hua. Effects of a slab’s built-in curling on dynamic load and riding comfort of vehicles[J]. Journal of Vibration and Shock, 2014, 33(23): 1-8.  
[13]  李武生. 大跨度公路斜拉桥车桥耦合振动系统安全性与车辆舒适性分析[D].郑州:郑州大学,2013.
LI Wu-sheng. The Analysis on the Security and        Vehicle Comfortableness of Vehicle-bridge Coupling Vibration System of Highway Cable-stayed Bridge with Long-span [D]. Zhengzhou: Zhengzhou University.
 [14] ISO2631-1,Mechanical vibration and shock-Evaluation of human exposure to whole-body vibration-Part 1:General requirements, 1997.

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