摊铺机自动调平熨平板运动学模型与特性  

Kinematic model and characteristics of automatic leveling screed plate on paver

作　　者：刘洪海[1] 谢王宝 郝玉飞 

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2015年第5期153-158,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：国家十二五科技支撑项目(2011BAE28B03);中央高校基本科研业务费专项资金项目(2014G3252006)

摘　　要：为了研究摊铺机的摊铺特性,提高摊铺平整度和弯道变坡控制精度,通过对配置自动调平系统摊铺机工作装置的作业机理和运动学分析,建立了摊铺机熨平板的运动学模型,确定了自动调平系统传感器安装位置、摊铺机作业速度、地面输入激励函数与熨平板输出响应之间的关系;采用正弦函数和阶跃函数分别模拟路面平整度激励和弯道变坡输入激励,建立了输出响应模型,应用Matlab软件在常用摊铺速度下进行了仿真研究。研究结果表明：调平系统传感器与熨平板后沿的安装距离越近,熨平板的随动性越好,变坡响应越快;安装距离越远,滤波效果越好,平整度越高;传感器的安装位置应在熨平板大臂的1/4-1/2之间,变坡控制要求高时取小值,平整度控制要求高时取大值,进行综合控制时取中间值。In order to study the paving characteristics of paver, and improve paving smoothness and variable slope curve precision control of paver, this paper established kinematic model of paver screed and determined the installed position of automatic leveling system sensor, paver operating speed, and the relationship between ground input excitation function and output response screed through analysing operating mechanism and kinematic characteristics of configure paver working device in automatic leveling system. This paper used sine function and step function to simulate pavement roughness excitation and input variable slope curve excitation respectively. It also established the output response model, and carried on a simulation study in common paving speed by use of Matlab. The results show that the closer the installed distance between leveling system sensors and screed trailing edge is, the better the screed trackability is, and the faster the variable slope response is. Furthermore, the farther the installed distance between leveling system sensors and screed trailing edge is, the better filtering effect it has and the higher the flatness is. Sensor should be installed in the position between 1/4 and 1/2 of the screed plate arm. It req high, taking a great val when integrated control uires taking a small value when flatness control r when the variable slope control requirement is equirement is high, and taking the middle value needed. 6 figs, 16 refs.

关 键 词：机械工程 摊铺机 熨平板 自动调平系统 运动学模型 

分 类 号：U411.75[交通运输工程—道路与铁道工程]