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轮式铲土运输机械是工程机械中的一大类。这类机械能较快较灵活地自行转场并且具有多用途和多功能,因而得到了迅速的发展,成了国民经济建设中不可缺少的一类机械。重型工程机械如挖掘机等在作业过程中不行驶或行驶速度极低,因而一般不存在座椅舒适性问题。但是轮式铲土运输机械由于作业的需要多不设弹性悬挂,但作业环境却十分恶劣,经常需要在无路的工地或临时的坏路上作业,而且常常要以较高的速度(装载机30～50公里/小时,铲运机可达60～80公里/小时)进行运输或转场。因而对轮式铲土运输机械而言,路面高低不平引起的随机振动,除了通过橡胶轮胎的有限衰减外,主要依靠驾驶座椅的减振作用来
Wheel shovel transport machinery is a major category of construction machinery. Such machinery can quickly and flexibly turn around itself and have multipurpose and multifunctional functions. Therefore, it has been rapidly developed and has become an indispensable type of machinery in the national economy. Heavy construction machinery such as excavators do not travel or travel at very low speeds during operation, so there are generally no seat comfort issues. However, because of the need of operation, wheeled earthmoving machinery is not provided with elastic suspension, but the working environment is very harsh. It often needs to work on unpaved working sites or temporary bad roads, and often at a higher speed (loader 30 ~ 50 km / h, scraper up to 60 ~ 80 km / h) for transport or transfer. Therefore, for the wheeled excavation machine, the random vibration caused by unevenness of the road mainly depends on the damping effect of the driver’s seat in addition to the limited attenuation of the rubber tire