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为了改善拖拉机的乘坐舒适性,本文讨论了拖拉机的简化模型和三个无源隔振座椅模型,用人体承受的总的加权加速度均方根值作为目标函数进行优化计算。并制成分段线性和动态耦合两种座椅样机,同铁牛-55型拖拉机原座椅一起进行道路对比试验,结果表明,两种新设计座椅的乘坐舒适性都得到了明显的改进效果,而且造价增加不多。从而表明,无源隔振座椅仍有其新的发展途径。
In order to improve the ride comfort of the tractor, this paper discusses the simplified model of the tractor and the three passive vibration isolation seat models, and uses the root mean square of the weighted total acceleration of the human body as the objective function to optimize the calculation. And made piecewise linear and dynamic coupling of the two seat prototype, with the Tractor -55 Tractor original road road test with the comparison, the results show that the two newly designed seat ride comfort has been significantly improved Effect, but also increase the cost is not much. This shows that passive vibration isolation seat still has its new way of development.