轮式拖拉机行驶稳定性分析  

Driving Stability Analysis of Wheeled Tractor

作　　者：唐兆家 王凤花[1] 喻黎明[1] Tang Zhaojia;Wang Fenghua;Yu Liming(Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming City, Yunnan Province 650500, Chin)

机构地区：[1]昆明理工大学现代农业工程学院,云南省昆明市650500

出　　处：《农业装备与车辆工程》2018年第5期15-19,共5页Agricultural Equipment & Vehicle Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2011AA100507);湖南省水利科技项目(湘水科计[2013]243-21);校级硕士研究生课程案例库建设项目(1319880603)

摘　　要：根据四轮后驱式拖拉机的运动特点,运用力学理论和方法,推导了四轮后驱式拖拉机在平面和坡面上行驶时,拖拉机附着系数φ、滚动阻尼系数f、重心高度h、轴距a、转弯半径R、最大滑移角aφ′参数之间的相互关系。在此基础上,分析了四轮后驱式拖拉机坡道行驶稳定性随这些参数变化的规律,指出了导致行驶不稳定的因素,为四轮后驱式拖拉机的结构参数和水平及坡面的行驶安全性提供了参考依据。According to the motion characteristics of four-wheel rear-drive tractors, using mechanics theory and method, the interaction relationship among the parameters of adhesion coefficient φ, rolling damping coefficient f, center of gravity height h, wheelbase a, turning radius R, the maximum slip angle aφ′, when the tractor drives on flat ground and slope is derived. Based on this, the rule of the four-wheel rear-drive tractor’s running stability changing along with these parameters is analyzed, the factors that cause driving instability are pointed out, and a reference basis for the structural parameters and driving safety on flat ground and slope of the tractor is provided.

关 键 词：轮式拖拉机 稳定性 MATLAB 坡地 

分 类 号：U461.4[机械工程—车辆工程]