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为了解决水工钢闸门滚轮在受载荷作用时产生的滚动摩擦力臂的计算方法问题,将滚轮与钢轨的接触问题简化为圆柱与圆柱座之间的接触问题,并以接触线为底作半圆,假设接触线上各点的压力与此半圆在该点的高度成正比。同时根据无限半平面Boussinesq问题的解法推导出滚动摩擦力臂的解析解。最后采用ANSYS建立滚轮全模型与钢轨进行接触分析来验证滚动摩擦力臂解析解的正确性。结果表明该滚动摩擦力臂计算公式简化合理,计算精度能够满足实际要求。
In order to solve the problem of calculating the rolling friction arm of hydraulic steel gate roller when it is under load, the contact problem between roller and rail is reduced to the contact problem between cylindrical and cylindrical seat, and the semi-circle , Assuming that the pressure at each point on the line of contact is proportional to the height of the semicircle at that point. At the same time, an analytic solution of the rolling friction arm is derived from the solution of the infinite half-plane Boussinesq problem. Finally, ANSYS was used to establish the contact analysis of the whole roller model with the rail to verify the correctness of the analytic solution of the rolling friction arm. The results show that the calculation formula of the rolling friction arm is simplified and reasonable, and the calculation precision can meet the actual requirements.