在航空引擎的设计上。振动(vibration)的影响是必须计及的。在引擎没有运转以前,就得把减少振动的事项安排好。必须在引擎各部分正确设计,适宜配置的节制下,才能适如其分的把振动吸除。航空机上采用的动力制振器(dynamic dam-per),便是用来控制振动的。振动的效应,可以用一个简单的比喻来说明。可以想象一个骑在马上的人,马奔跑的时候,他特别觉得坐鞍在剧烈地上下移动。初学的人受到坐鞍这样一下一下的突撞,会觉得非常疲乏;这 In the design of aviation engines. The effect of vibration must be taken into account. Before the engine is running, you must arrange for vibration reduction. Must be properly designed in the various parts of the engine, the appropriate configuration of restraint in order to properly absorb the vibration. The dynamic dam-per used on aircraft is used to control vibration. The effect of vibration can be illustrated with a simple metaphor. Imagine a person riding on the horse. When the horse runs, he particularly thinks that the saddle moves up and down violently. Beginners will feel very tired when they are saddled by this saddle;