关键词: 车辆行驶性 , 塔克拉玛干沙漠 , 沙 , 承压特性 , 新模型

Abstract: Tests have been conducted in a soil bin to study the interaction between vehicle and terrain so as to investigate the relationship of pressure-sinkage of Takelama- gan desert sand in Xinjiang. Bekker’s formulae is first used to describe the relationship of pressure-sinkage of the desert sand. A new model for predicting the relationship of pressure- sinkage of the desert sand is then presented. Comparison between results of computation with the new model and test results is made. It is found from the compari?son that there exist a fairly close agreement between them. These results lay the founda?tion for further studies in the interaction between vehicle walking machine and the desert sand, and in the development of desert vehicle.

Key words: vehicle walking characteristics , Takelamagan desert , sand , relationship of pressure- sinkage , new model