Simulation of Hydraulic Cylinder Cushioning

The internal cushioning systems of hydraulic linear actuators avoid mechanical shocks at the end their stroke. design where piston with perimeter grooves regulates flow by standing in front outlet port has been investigated. First, a bond graph dynamic model developed, including throughout cushion design, characterized detail computational fluid-dynamic simulation. Following this, radial movement and coefficients, experimentally validated, are integrated into model. registered is coherence significant drag force estimated CFD simulation, generated through grooves, laminar regime predominates. Ultimately, aims to predict behavior during arm an excavator. analytical developed predicts performance system, empirical results. There optimal behavior, highly influenced stress conditions subject compromise between increasing section optimization gap.