vertical wheel

From the analysis, it could be concluded that the conditions of the soil, diameter and width of the wheel, vertical load and traction were the factors affecting sliding of the ground wheel.

通过分析得出地表及土壤状况、地轮直径、地轮宽度、地轮上的垂直载荷以及地轮的抓地力是影响地轮机构滑移率的因素。

The results show that the vertical wheel/ rail impact can excite space vibration between wheel and rail, which leads to rail corrugation.

结果表明，轮轨垂向冲击可激起轮轨间横向与纵向的相对振动，从而导致轮轨磨耗数以较高频率变化，使钢轨产生波浪形磨耗。

In this paper, the factors chosen were diameter and width of the wheel, vertical load on the wheel and the length of the anti-sliding tooth, then the regression equation was obtained to study the effects of all factors on sliding of the ground wheel.

选择地轮直径、地轮宽度、地轮的垂直载荷、防滑齿长度为试验因素，建立了滑移率的回归方程，研究各因素对地轮滑移率的影响。

On the conditions that the rail lateral, vertical and torsional vibrations, and the track irregularities are considered synthetically, the wheel rail contact geometry, the wheel track normal contact force model, and the wheel/ rail tangential creep force are solved in details.

详细研究了在充分考虑钢轨横向、垂向和扭转振动以及轨道不平顺作用下，轮轨空间动态接触几何关系、轮轨法向力以及轮轨蠕滑力的求解模型。

One is that how to demount the wheel and the output shaft that were too difficult to demount in the L60 vertical axial-flow fans, the other problem is to test static balance about the wheel.

就L60立式轴流风机轮毂与输出轴难于拆卸的问题和叶轮静平衡测试问题进行探讨，并提供用自制的简易龙门架和静平衡装置的方法进行检修的经验。