基于加速度干扰的公路行车舒适性研究  

The Study of Highway Riding Comfort Based on Acceleration Noise Model

作　　者：许伦辉[1,2] 宋聪聪[1] 胡三根[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510640 [2]江西理工大学电气工程与自动化学院,赣州341000

出　　处：《科学技术与工程》2016年第13期279-283,共5页Science Technology and Engineering

基　　金：国家自然科学基金项目(61263024)资助

摘　　要：加速度干扰是对车辆速度摆动的描述,车速摆动涉及行车舒适性的问题,加速度干扰可以作为一个评价行车舒适性的定量评价指标。选取道路平面线形三要素之一的缓和曲线进行研究,考虑人体对不同振动方向的敏感程度不同,分别建立水平和竖直方向的分加速度干扰模型,然后给予两个方向不同的计权系数,建立了缓和曲线上合加速度干扰模型。通过实例仿真,分析回旋线参数和行驶速度对加速度干扰及行车舒适性的影响。最后选取试验路段,对模型进行验证与应用,既为评价行车舒适性提供了定量分析指标,又为道路缓和曲线的设计提供参考依据。Acceleration noise is a description of the vehicle speed swing,and speed swing involves the problem of riding comfort. So it can be used as a quantitative evaluation index for riding comfort. Easement curve is studied,then two new acceleration noise models of horizontal direction and vertical direction are set up. Considering human body being different sensitive degree of different vibration direction,different proportion is given. Finally the synthetic acceleration noise model is set up. The influence of clothoid parameter and vehicle speed on acceleration noise and riding comfort is analyzed through the simulation. Finally,the model is verified and applied through selecting test section. The new model not only can provide a quantitative evaluation index for riding comfort,but also can be used for highway design.

关 键 词：缓和曲线 加速度干扰 行车舒适性 敏感程度 评价指标 

分 类 号：U491.255[交通运输工程—交通运输规划与管理]