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基于最佳凸度量取值区间的概念,针对性能最优的对数轮廓滚子,提出了根据热弹流理论进行凸度设计的方法.使用该设计方法研究了对数滚子凸度量修正系数随工况参数的变化规律.定义了轴向膜厚分布系数和轴向压力分布系数,通过限制二者许用值的方法确保压力分布和膜厚分布的轴向均匀性,而轴向膜厚分布系数和轴向压力分布系数的许用值分别与最佳凸度量取值区间的下限和上限相对应.研究指出:轻载时凸度量修正系数的下限随载荷的增加而增加;重载时凸度量修正系数的下限随载荷的增加而趋于稳定,凸度量修正系数的上限随载荷的增加而增大;速度参数对最佳凸度量取值区间的影响不显著.
Based on the concept of optimal convex metric interval, aiming at the logarithmic profiler with the best performance, a method of convexity design based on thermo-elastic theory is proposed.The correction coefficient of logarithmic roller convexity is studied using this design method With the variation of operating parameters, the axial thickness distribution coefficient and axial pressure distribution coefficient are defined, the pressure distribution and axial thickness uniformity are ensured by limiting the allowable values of both, while the axial thickness The allowable values of distribution coefficient and axial pressure distribution coefficient respectively correspond to the lower and upper limits of the optimal convexity value interval.Research shows that the lower limit of the correction coefficient of convexity of light load increases with the increase of load at light load, The lower limit of the convexity correction coefficient tends to be stable with the increase of the load, and the upper limit of the convexity correction coefficient increases with the increase of the load. The influence of the velocity parameter on the optimal convexity value interval is insignificant.