A Novel Approach of Studying the Fluid–Structure–Thermal Interaction of the Piston–Cylinder Interface of Axial Piston Pumps

The friction in the swash plate type axial piston pumps is mainly influenced by fluid film interface. piston–cylinder interface one of key interfaces pumps. geometry determined gap between and cylinder. dimensions parts determine geometry, deformation structure also influences geometry. viscosity strongly temperature. Thus, a novel approach studying film, structure, temperature interaction provided this paper. A full quick fluid–structure–thermal simulation realized. Then, dynamic model interface, which integrated interacting effects, has been developed. Finally, an for calculating extra force cylinder provided. Compared with measurement data, results achieve good fit. present work allows fast prediction detailed support designing interfaces.