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Predicting Gearbox Efficiency From Temperature And SpeedA geared aircraft engine transfers power through several mechanical interfaces, but the reduction gearbox often determines how effectively that power reaches…
Shaft Torsional Stiffness And Gear Rattle In Geared TurbofansA geared turbofan transfers power from a high-speed core to a larger fan through a reduction gearbox. This architecture allows the turbine and fan to operate…
Optimizing Gear Tooth Profile Shift for Lower Mesh SlidingIn a geared aircraft engine, every tooth contact must transmit substantial torque at high rotational speed while operating within strict limits for weight,…
Dovetail Joints and Gearbox Response Under Variable TorqueIn a geared aircraft engine, the gear body must transmit substantial torque while remaining light, stiff, and reliable at high rotational speed. The connection…
Gearbox Housing Thermal Expansion And Gear MeshingA geared aircraft engine depends on precise alignment between rotating components. The gearbox housing provides the structural reference for bearings, shafts,…
Why oil scavenge system design matters for high-speed gearbox reliabilityIn a geared aircraft engine, the oil scavenge system is responsible for removing used lubricant from bearing chambers, gear meshes, and other wetted regions…
Finding the Right Oil Jet Nozzle Diameter for Geared Aircraft EnginesOil jet nozzles perform a small but highly influential function inside an aircraft engine gearbox. They direct lubricant toward gear meshes, bearings, and…
How Gear Material Cleanliness Shapes Rolling Contact Fatigue LifeGears in geared aircraft engines operate under a demanding combination of high speed, concentrated contact stress, limited space, and strict mass targets.…
Minimizing Gearbox Axial Length Through Compact Bearing ArrangementsGeared aircraft engines place unusual demands on the transmission system. A reduction gearbox must carry high torque, operate at substantial rotational speed,…
Oil Flow Rate And Heat Generation In Aircraft GearboxesOil flow is a primary thermal control variable in a geared aircraft engine. It carries heat away from gear meshes, bearings, shafts, and housing surfaces,…