Experimental investigation of the dynamic load sharing of planetary gearboxes

Abstract Due to their compactness and power density, planetary gearboxes are used for a wide range of high-performance applications in the automotive, aviation marine sector. Aerospace particular benefit from full use load capacity potential meet requirements lightweight construction efficiency. Against this background, sharing between individual gears plays decisive role. A uniform enables design single tooth meshes without increases oversizing. However, due manufacturing assembly deviations, perfect is technically not feasible. These taken into account standard calculation by mesh factor Kγ. The influenced number factors, such as rigidity shafts, housing bearings, planets, quality gear wheels operating conditions. Detailed simulations or extensive experimental measurements required determine exact sharing. For new designs gearboxes, there only simplified assumptions available, based on planets rough estimation range. Especially additional dynamic forces, operation high-speed ranges near resonance frequencies, can lead considerable change compared static cause an uncertainty design. Thus, paper behaviour investigated 0 6800 rpm sun speed different loads. Based data recommendations under consideration conditions derived.