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一、引言机车车辆的弹簧悬挂装置,在很大程度上决定走行性能的优劣。对于高速运行的走行部,合理的选择悬挂特性和参数,就平稳稳定运行而言,是尤为重要的。众所周知,机车车辆走行在非均匀弹性的线路上,由于外扰函数的作用以及相互耦合,将激起各种振动现象。振动特性不仅取决于线路不平顺的数值、形状和频率,而且还取决于悬挂装置的缓和和吸收能力。为了平稳稳定运行,一方面要使附加的钢轨应力最小,另方面
First, the introduction of locomotives and rolling stock suspension devices, to a large extent determine the merits of walking performance. For high-speed running department, a reasonable choice of suspension characteristics and parameters, in terms of stable and stable operation, is particularly important. It is well-known that locomotives and rolling stock running on non-uniform and elastic lines will cause various vibration phenomena due to the function of external disturbance function and their mutual coupling. The vibration characteristics depend not only on the value, shape and frequency of the line irregularities, but also on the ease and absorption capacity of the suspension. In order to be stable and stable operation, on the one hand to make additional rail stress minimum, on the other hand