Windage Loss Characteristics of Aviation Spiral Bevel Gear and Windage Reduction Mechanism of Shroud

With the increasing speed of aviation gear, windage loss has been main component power loss. Reducing is great significance to improving transmission efficiency spiral bevel gear. Firstly, calculation model enclosed gear was established, and basic physical mechanism illustrated by numerical simulation, so as obtain mechanical energy characteristics Then, influence geometry clearance parameters shroud on studied orthogonal test, variance analysis optimization design. The reduce under multi-factors also studied, their interaction obtained. results show that tooth surface clearance, heel meshing opening are significant factors, most factor clearance. non-significant each factor. least toe In other words, can be reduced greatest extent simultaneously reducing value between Finally, based shroud, design principle affecting structural performance put forward, which provides theoretical guidance for practical application in reduction engineering.