摘要
该文用ADAMS的专门分析履带车辆的工具箱模块(ATV)建立了某自行火炮虚拟样机,该虚拟样机由242个刚体组成,有1267个运动自由度。详细分析了各刚体之间的连接关系和受力情况。根据Bekker理论计算履带板的沉陷量。通过对ATV用户路面子程序的二次开发,计算出自行火炮在A级路面以3档速度匀速行驶时,任一时刻的各接地履带板的转角和履刺表面中点的沉陷量,由此计算出各接地履带板的压力分布,进而得到整条履带的接地压力分布。这一结果应比传统假定的接地压力分布更为准确。
In this paper, a virtual prototype of a self-propelled gun is created by means of ADAMS Tracked Vehicle（ATV） which is a tool model of ADAMS. The virtual prototype consists of 242 rigid bodies and has 1267 degrees of freedom. The constraints between the rigid bodies and the forces acting on the bodies are analysed in detail. The amount of sinkage of the track segments is calculated according to Bekkerg sinkage theory. Making the virtual prototype run on a A-road in the third gear, the sinkages and the rotation angles of the track segments which contact with ground are obtained through the second development for the user road subroutine of ATV. Thereafter, the ground pressure distribution under a track segment which contacts with ground is calculated and the ground pressure distribution under the track is obtained. This result of the ground pressure distribution is more accurate than those various types of idealized ground pressure distribution under a track.
出处
《计算机仿真》
CSCD
2005年第7期139-141,共3页
Computer Simulation
关键词
履带车辆
虚拟样机
动力学分析
自行火炮
地面力学
Tracked vehicle
Virtual prototype
Dynamic analysis
Self-propelled gun
Terramechanics
