便携式割灌机U型手柄的人机工程学优化研究

该文通过模拟实验，研究了便携式割灌机Ｕ型手柄人机几何界面参数对操作者主观施力的影响。人机几何界面参数包括:U型手柄宽度，操作者至左右握持点连线的垂直距离，握持点距操作者站台的高度3个参数。结果表明，手柄宽度、握持点距身体的前后距离以及握持点距站台的高度对水平横向操作力的影响都很显著。手柄宽度与身高具有很好的线性关系，相关系数为0.975。研究结果为U型手柄割灌机以及相关类型的机械设计提供了人机工程学设计依据。 

Optimization of U-handle of portable brush cutter based on ergonomics

In the paper,a simulation-based experimental study was carried out on the effects of man-machine interface geometrical parameters of U-handle brush cutter on operator's exertion.The man-machine interface geometrical parameters of U-handle brush cutter include the width of the U-handle,the height of the handle from standing platform and the distance of the handle from the operator.The results indicate that the effects of the width,height and distance of U-handle are significant.There is a high correlativity between the width of U-handle and the height of operator and coefficient of correlation is 0.975.The results of this study provide an ergonomical support for the design of U-handle brush cutter and other relative machines.