Abstract Arbitrary velocity vectors on two meshing surfaces in spiral bevel gears could generate large sliding velocity, which may cause a tremendous temperature rise, especially when surface roughness is involved. However, available studies are primarily concentrated on full-film lubrication without considering temperature rise and surface topography. The purpose of present study is to develop a mixed thermal elastohydrodynamic lubrication (TEHL) model taking into account the velocity vector and surface roughness. The obtained results are compared with those from an elastohydrodynamic lubrication (EHL) model and measurements in previous literature to demonstrate the accuracy of the present model. Further, the TEHL model has been applied to predict the film thickness, pressure, and temperature rise of spiral bevel gears over one meshing period by considering thermal effects.

中文翻译：

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用于预测螺旋锥齿轮润滑性能的热效应的混合 TEHL 模型

摘要 螺旋锥齿轮两个啮合面上的任意速度矢量会产生很大的滑动速度，这可能会导致极大的温升，特别是当涉及表面粗糙度时。然而，现有的研究主要集中在全膜润滑上，而没有考虑温升和表面形貌。本研究的目的是开发一种考虑速度矢量和表面粗糙度的混合热弹性流体动力润滑 (TEHL) 模型。将获得的结果与弹性流体动力润滑 (EHL) 模型和先前文献中的测量结果进行比较，以证明本模型的准确性。此外，TEHL 模型已被应用于预测薄膜厚度、压力、