Simulation of travelling performance and experimental research on heavy double crawlers on a soft ground

作者：Zhang, Guanyu; Liu, Xinhui; Wang, Shuai^*; Wang, Guoqiang

来源：Journal of Mechanical Science and Technology, 2017, 31(2): 501-514.

DOI：10.1007/s12206-017-0103-7

• Conveyor loader
• Heavy crawler
• Soft ground
• Performance simulation

This study analyzes resistances to sinking, steering bulldozer, steering friction, running, climbing, inertia, and wind and considered the offsetting effects of instantaneous center of speed and center of mass based on the sinkage method proposed by Bekker. The purpose of the analysis is to show the calculation method for the driving power of crawlers under different working conditions. The influence of several performance factors were analyzed to calculate the steering performance of a dumping machine with heavy double crawler. The performance factors include steering radius, offset mass, width-to-length ratio, crawler width wider than the interior and lateral, caterpillar gauge in crawler drive, drive power, and steering torque friction. These factors are involved in driving wheels at a crawler speed of 3.33 RPM. The law of operation for heavy crawlers under different working conditions is obtained by performing a real vehicle test. The results of this test are compared with the theoretical calculations to verify correctness. Such a test provides important theoretical basis for theoretical modeling and for analyzing the performance of large crawlers running on soft ground.

• 出版日期2017-2
• 单位吉林大学