The contact pressure distribution at the cone clutch operating interface of a transmission synchroniser may have a significant effect upon gear shift quality and reliability. Modifications have been made to a standard finite element package to facilitate accurate predictions of such contact pressure distributions. Results illustrating the effect of varying shift lever load, material properties and cup/cone differential angle are presented for the particular case of a commercial vehicle pin-type synchroniser. Tests have been carried out on production components over a large number of operating cycles to accurately measure wear signatures which, using pin-on-disc wear data, are then converted to pressure distributions. Good agreement between numerical and experimentally-derived interfacial pressures is obtained for certain assumed values of friction material modulus. Additional assumptions in the finite element approach and implications of the results for synchroniser design are discussed.
Finite element simulation of the interfacial contact behaviour of an automotive gearbox synchroniser
Finite Elemente Simulation des gegenseitigen Kontaktverhaltens einer Getriebesynchronisationseinrichtung in Kraftfahrzeugen
1990
11 Seiten, 18 Bilder, 13 Quellen
Aufsatz (Konferenz)
Englisch
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