Comparative Study of Orifice Shapes on Shock Absorber: Impact on Energy Dissipation and Cavitation
Please login to view abstract download link
Aircraft landing gear shock absorbers, crucial for safe landings and taxiing operations, rely on hydraulic orifices to dissipate kinetic energy. The orifice shape plays a pivotal role in shaping the internal multiphase flows that determine energy dissipation rates and damping forces. This study employs computational fluid dynamics (CFD) to investigate transient flows through four distinct shock absorber orifice variants: circular, rectangular, semi-circular, and cutback. Coupled volume-of-fluid (VOF) simulations meticulously quantify pressure differentials, velocities, vapor formations, and damping loads across the orifice designs. The findings highlight the interplay between orifice geometry, cavitation, and overall damping.
