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在机车牵引性能、运行稳定性和动力学指标的数学模型上进行理论研究必须具有粘着系数与相对滑动的关系,这一关系已列入有关走行部轮对座标系综合力表达式内。该特性在相对座标(粘着利用系数即粘着系数与物理粘着系数之比——相对滑动)中称为粘着特性。不同作者获得了不同形式和数量的轮轨粘着特性,这是因为在粘着过程中有多种因素的影响,其中包括走行部垂向和水平向动力学、
The theoretical research on the mathematical models of tractive performance, running stability and dynamic indexes of locomotives must have the relationship of the adhesion coefficient and the relative slip. This relationship has been included in the comprehensive expression of the wheel-coordinate system of the running gear. This property is referred to as the sticking property in relative coordinates (sticking utilization coefficient, ie, ratio of sticking coefficient to physical sticking coefficient - relative slip). Different authors obtained different types and numbers of wheel-rail adhesion characteristics due to a number of factors involved in the adhesion process, including the vertical and horizontal kinematics of the running gear,