引用技术文献中的载荷谱资料,应用疲劳分析方法,对拖拉机使用试验中各种作业前桥载荷造成的前桥疲劳损失进行量化分析,揭示运输作业的前桥工作载荷是导致前桥疲劳损伤的主要原因。并指出,如果仅为检验拖拉机支承系统可靠性而进行拖拉机使用试验,可免做田间试验,只需进行标准规定的时数相对较少的运输作业试验。 Based on the load spectrum data in the technical documents, the fatigue analysis method is used to quantitatively analyze the fatigue loss of the front axle caused by various working front axle loads in the tractor use test. It is revealed that the working load of the front axle of the transportation operation is the fatigue damage of the front axle main reason. It was also pointed out that if only tractor use tests were carried out to test the reliability of the tractor support system, field trials could be dispensed with and only a relatively small number of hours of transport tests required by the standard would be required.