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| 轴重和胎压对车轮动荷载的影响 | |
| 引用本文： | 董忠红,闰卫红,吕彭民,徐全亮.轴重和胎压对车轮动荷载的影响[J].公路交通科技,2009,26(3). |
| 作者姓名： | 董忠红 闰卫红 吕彭民 徐全亮 |
| 作者单位： | 1. 长安大学,道路施工与装备教育部重实验室,陕西,西安,710064 2. 河南省交通规划勘察设计院,河南,郑州,450052 3. 交通部公路科学研究院,北京,100088 |
| 基金项目： | 交通部西部交通建设科技项目 |
| 摘 要： | 为研究重型运输车辆对路面作用的动荷载，建立车辆动力学模型，模型中将簧上质量处理为空载簧上质量与装载质量，将轮胎刚度表示为轴重和胎压的函数。研究了轴重和胎压对车辆动荷载的影响。结果发现，车轮动荷载随着轴重和胎压的增加而增加；动载系数随着胎压的增加而增加，但随着轴重的增加而减小；胎压越高，车轮动载随轴重增加速度越快；仅仅采用轴重不足以评价重载高压车辆对路面的破坏作用，在治理超载的同时也应进一步治理超压：空载车辆对路面的冲击作用较大，不能忽视空载车辆对路面的破坏作用；实际高速运行车辆对路面施加较大的附加动荷载，现有《公路沥青路面设计规范》没有考虑附加动荷载是引起路面结构发生早期破坏的原因之一。 |
| 关 键 词： | 道路工程 动荷载 车辆动力学 分布质量 轴重 速度 胎压 |
Study on Influence of Axle Load and Tire Pressure on Dynamic Wheel Load |
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| DONG Zhonghong,YAN Weihong,LV Pengmin,xu Quanliang.Study on Influence of Axle Load and Tire Pressure on Dynamic Wheel Load[J].Journal of Highway and Transportation Research and Development,2009,26(3). | |
| Authors: | DONG Zhonghong YAN Weihong LV Pengmin xu Quanliang |
| Institution: | 1.Key Laboratory for Highway Construction Technology and Equipment of the Ministry of Education;Chang'an University;Xi'an Shaanxi 710064;China;2.Henan Provincial Communications Planning Survey & Design Institute;Zhengzhou Henan 450052;3.Research Institute of Highway;Ministry of Communications;Beijing 100088;China |
| Abstract: | To study the dynamic load of the heavy-duty vehicle exerting on pavement,a vehicle dynamic mode was developed.The sprung mass in the model was divided into two parts:the vehicle's own sprung mass and the loaded mass.The tire stiffness was expressed as the function of the axle load and the tire pressure.The influence of the axle load and the tire pressure on the dynamic wheel load was analyzed.It is found that(1) the dynamic load increases with the increase of the axle load and the tire pressure,and the dyna... |
| Keywords: | road engineering dynamic load vehicle dynamics distribution mass axle load speed tire pressure |
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