引言铁路货运的一般发展趋势是在较高速度下增加净载重。其结果往往是引起轴重的增大,从而造成线路损坏的加剧。在采用常规转向架而以较高速度运行时,曲线通过性能的恶化几乎是不可避免的;由于货车常常要在有很多小半径曲线的线路上运行,这就导致车轮和钢轨的急剧磨耗。因此,悬挂设计者总是面临着车辆稳定性与曲线通过性能之间的矛盾。 Boocock对车辆曲线通过的早期研究工作说明,在蠕滑力控制下导向的概念是切合实际的。已确定有助于实现良好曲线通过性能的主要因素是:低的水平悬挂刚度、高的轴重、短的固定轴距和大的有效斜度。低的 INTRODUCTION The general trend of rail freight development is to increase the net load at higher speeds. The result is often caused by the increase in shaft weight, resulting in increased line damage. The deterioration of curve-passing performance is almost inevitable with conventional bogies running at higher speeds; trucks often run on lines with many small radius curves, which results in drastic wear of wheels and rails. Therefore, the suspension designer is always faced with the contradiction between vehicle stability and curve through performance. Early work by Boocock on passing vehicle curves shows that the concept of guidance under creep control is realistic. The main factors that have been identified to help achieve good curve-through performance are low horizontal suspension stiffness, high axle weight, short fixed wheelbase and large effective slope. low