履带板转向运动轨迹分析  

STUDY ON TRACK TURNING TRACE

作　　者：黄海东[1,2,3,4] 吕俊伟[1,2,3,4] 程悦荪[1,2,3,4] 诸文农[1,2,3,4] 刘国民[1,2,3,4] 

机构地区：[1]吉林工业大学机械科学与工程学院 [2]吉林工业大学信息工程学院 [3]吉林工业大学汽车工程学院 [4]水利部长春机械研究所

出　　处：《农业机械学报》1999年第1期23-27,共5页Transactions of the Chinese Society for Agricultural Machinery

摘　　要：利用动、静坐标系来研究接地履带板上任意一点在转向过程中的运动，获得了履带板在地面上运动的轨迹方程。用计算机绘出了某大型履带推土机的履带板在转向过程中的运动轨迹。The traditional method to analyze the turning resistance moment of a tracked vehicle is by introducing a coefficient which has an unclear concept. It is impossible to express clearly the various factors affecting the turning resistance moment for a particular tracked vehicle turning on certain conditions with this coefficient. In fact, the coefficient of turning resistance moment is a function of many variables. Because of its complexity, the coefficient could only be determined on a vast number of test results. It is obvious that the turning resistance moment is mainly determined by both the movement of the track shoes and the characteristics of the earth. How does the track shoe move while the tracked vehicle is turning? How does the turning resistance moment is influenced by the movement of the track shoes? The studies on the answers of those are quite limited. In fact, once the movement of the track shoe is studied sufficiently, the turning resistance moment of a tracked vehicle can be analyzed more easily, and the turning theory about the tracked vehicle will be more complete. This paper is aimed to find a mathematical expression of the movement of a track shoe on the ground so that the track turning trace can be analyzed with a computer. It was started with the movement status of an arbitrary point on a track shoe during the tracked vehicle is turning and then its trace was analyzed by means of the static coordinate system and the moving coordinate system. The moving trace equation of a track shoe which is a function of the track gauge, the shoe width,the velocities of either side tracks and the slip ratio was obtained. Based on the result of this paper, the relationship between the turning resistance moment and the parameters of the tracked vehicle was explained. The results are significant in further study on the turning mechanism of the tracked vehicle and in promoting the study on turning behavior of various tracked vehicles. Particularly, it is also helpful to explain the cause of turning resistance

关 键 词：履带式车辆 转向 履带 运动轨迹 

分 类 号：U461.1[机械工程—车辆工程]