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Selected aspects of wear affecting keyed joints and spline connections during operation of aircrafts

Gębura A., Szymczak J.

Prace Naukowe Instytutu Technicznego Wojsk Lotniczych

2014

nr 35

85—103

The paper deals with selected deficiencies of spline connections, such as angular or parallel misalignment (eccentricity) and excessive play. It is emphasized how important these deficiencies are for smooth operation of the entire driving units. The aim of the study is to provide a kind of a reference list with such deficiencies with visual symptoms of wear, specification of mechanical measurements for mating surfaces, mathematical description of waveforms for dynamic variability of motion in such connections and visualizations of the connection behaviour acquired with the use of the FAM-C and FDM-A. Attention is paid to hazards to flight safety when excessively worn spline connections are operated for long periods of time.