An abrasive wear model between valve plate and cylinder block in axial piston pumps

摘要

Aircraft plunger pumps provide pressurized fluid to manipulate rudders and landing gears of airplanes. The primary failure mode of aircraft plunger pump is abrasion of internal components. This paper proposes an abrasive wear model of aircraft axial plunger pump for estimating wear volume per unit time. Separation of valve plate and barrel is calculated by considering dynamics of barrel, and wear volume per unit time is estimated by a two-dimensional rhombic particle model.