油膜轴承的锥套与轧辊辊颈采用弹性结合方式联结,具有载荷传递平稳的优点。然而,由于锥套与辊颈利用液压胀形实现过盈装配,使得接触面间在装配过程中发生表面损伤。为确定锥套损伤形式与装配过程的力学行为之间的关系,本文通过模拟试验,利用分形理论,揭示磨损表面形貌的几何特征,探讨接触应力场对不同表面损伤形式的影响机理。 Oil film bearing sleeve and roller roll neck with flexible combination of bonding, with a smooth load transfer advantages. However, since the tapered sleeve and the roll neck are hydraulically deformed to achieve interference fit, surface damage occurs between the contact surfaces during assembly. In order to determine the relationship between the form of taper sleeve damage and the mechanical behavior during the assembly process, this paper uses the fractal theory to reveal the geometrical characteristics of the worn surface morphology and to explore the mechanism of contact stress field on different surface damage forms.