Evaluation of the Influence of Manufacturing Faults in Gears on the Quality Indicators of Aircraft Actuators

A key area in the development of aerospace and aviation engineering is the improvement of functional and operational characteristics of aircraft mechanical systems, with priority given to actuators based on gears with rigid and flexible links, movable and stationary geometrical axes of rotation of the gears, and with various gearing modules. Variation in the nominal profile of the gear tooth in the range of the tolerance zone and the centre distance error jointly cause variation in the contact ratio, which in turn leads to variation in contact and flexural stresses. A method is proposed for evaluating the influence of manufacturing faults in fine pitch gears of actuators of mechanical systems of space vehicles on the quality indicators as well as functional and operational characteristics of the vehicles.

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