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直接采用贝氏理论及其派生方法预测驱动车轮在沙地上重复通过时的牵引性能将会产生较大的误差。本文参照试验结果提出了减小这种误差的可行途径。应用本文的方法，可明显改善刚性驱动轮在松散沙土上重复通过时牵引性能的预测精度。
The direct use of Bayesian theory and its derivation method to predict the driving performance of the traction wheel when repeated on the sand will have a greater error. Based on the experimental results, this paper puts forward a feasible way to reduce this error. The method proposed in this paper can obviously improve the prediction accuracy of the traction performance when the rigid driving wheel repeatedly passes on the loose sand.