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机耕船的重心位置和船尾长度是其总体布置的重要指标之一。本文推导了机耕船水田状态整机重心纵向坐标a_s与船尾长度L_w间的关系式,讨论了各系数和参数对其关系的影响,经田间电测试验进行了验证。同时,根据几种工况下稳定性和通过性对a_s和L_w数值范围的要求,提供了确定a_(s.min)和L_(w.max)的计算式,并给出了合理选择机耕船重心位置和船尾长度的电算程序和算例分析。
The center of gravity and stern length of a tractor are one of the key indicators of its overall arrangement. In this paper, the relationship between the longitudinal center of gravity a_s and the length of the ship stern L_w of paddy field under the condition of paddy field is deduced. The influence of each coefficient and parameter on the relationship is discussed. The field test is validated. At the same time, according to the stability and passability under several conditions, the formulas for determining a_ (s.min) and L_ (w.max) are provided and the reasonable choice of machine-made boat Calculation of center of gravity and stern length of computer program and case study.