滚动冲击压实机静态仿真分析

Static simulation on rolling impact compaction machines

通过仿真研究滚动冲击压实机变矩器的无因次特性、发动机变矩器的共同输入输出特性和牵引车的牵引特性.仿真结果表明:发动机转矩特性曲线和变矩器输入扭矩曲线的交点是发动机与变矩器共同工作的稳定点,其工作范围是变矩器输入扭矩曲线与发动机外特性曲线所围成的最大区域;1挡、2挡、倒挡最高车速分别为11.054,35.44,14.812km.h-1;最大有效牵引功率为54kW;最大牵引效率为53%;额定滑转率为29%;变矩器最大输出功率对应的牵引力为61kN;附着条件决定的最大牵引力为83kN.

Such properties as the dimensionless,common input and output between engine and torque converter,and traction of tractor are simulated on rolling impact compaction machines.From the simulation results,it is indicated that the intersect between torque property curve of engine and input torque curve of torque converter is a common stable working point,whereas the working scope is the maximum covering area of both curves.In addition,the maximum speeds of the first,the second and the reverse gears are 11.054,35.44,14.812 km·h-1,respectively.In this case,the maximum effective traction power is 54 kW,the maximum traction efficiency is 53%,the rated slip-ratio is 29%,the traction force regarding the maximum output power of torque converter is 61 kN,the maximum traction force subject to additional conditions is 83 kN.