运行品质的评定,不能脱离人们的主观印象,特别是在转向架的发展阶民人们的爱憎,从前已有的观察,和可能的推测均不能完全排除。即便具有最好的愿望也终不能得到转向架车辆动力作用的明确判断。例如,难于区别所感觉到的剧烈滚动和摆动究竟是由于摇枕吊水平振动的大振幅所引起的,或是由于在簧上的滚动所引起的,或是由于两者同时引起的,抑或蛇行运动为其主要因素。 The assessment of running quality can not be divorced from the subjective impression of people, especially the love and hate of people in the development stage of the bogie. The previous observations and the possible speculation can not be completely ruled out. Even with the best wishes, there is no clear judgment of the power of the bogie vehicle. For example, it is difficult to distinguish whether the perceived violent rolling and wobbling is caused by a large amplitude of horizontal vibration of the bolster, either due to rolling on the sprung or both, or meandering Exercise is its main factor.