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考查过去有关转向架设计各方面的论文以后,可能认为对于选定悬挂参数问题不久将接近于真正科学的地位。应该强调指出,在当对有关轨距、轮径、踏面锥度、转向架簧上和车体的质量、重心高度、惯性矩以及全轴距的了解,使设计者有可能确定在整个速度范围内与通常运行线路条件下具有满意的运行性能的要求之前,将还要经历一段很长的时间。目前仅用计算尺所能做的全部工作只是:决定浮沉、点头、摇头、侧滚、侧摆、滚摆等振型的自振频率;选择弹簧与吊杆的特性,避免在常用速
After examining previous essays on various aspects of bogie design, the issue of the choice of suspension parameters may well be considered to soon be near real science. It should be emphasized that while being aware of the relevant gauge, wheel diameter, tread taper, bogie sprung and body mass, center of gravity, moment of inertia and full wheelbase, it is possible for the designer to determine the overall speed range It will take a long time before it meets the requirements of satisfactory operating performance under normal operating line conditions. At present, all the work that can be done with a slide rule is just to decide the natural frequencies of vibration modes such as drifting, nodding, shaking his head, rolling, rolling and rolling. Choosing the characteristics of spring and boom,