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许多微幅振动会通过座垫传到拖拉机驾驶员身上,如发动机、轮胎、变速器这些做简谐运动的部件或其它一些做转动或平动的部件;还有随机激励。为了研究机械振动对人的不利影响,以及减少的措施,不论是采用振动隔离还是其它方法,我们都必需了解振动的本质、在什么样的条件下人是可以适应的、以及人体对微幅振动的动力影响。本文建议今后把“振动水平”作为农业机械结构设计中不可忽视的内容。
Many small vibrations are transmitted through the seat cushions to the tractor driver, such as engines, tires, transmissions that perform harmonic motion or some other rotating or moving part; and random excitation. In order to study the adverse effects of mechanical vibration on human beings, as well as the reduction measures, whether using vibration isolation or other methods, we must understand the nature of vibration, under what conditions people can adapt, and the human body to micro-vibration The dynamic impact. This paper suggests that the future “vibration level” as the agricultural machinery structure design can not be ignored.