In today’s manual transmissions of car, gearshift system requires high performance with particular emphasis on low effort, minimal travel and positive feel. To meet these targets, a high capacity multi cone synchronizers along with higher co-efficient of friction material used for lower gears. The design of synchronizer with these specifications is influenced by torsional fluctuations from engine.Excessive torsional vibrations leads to wobbling of synchro rings within the peripheral clearances with surrounding parts. Wobbling leads to abrasion wear of frictional area of synchro ring causing grating or crashing noise of gears during shifting.This paper presents the optimization of the multiple cone synchronizer design exposed to excessive torsional vibrations and validation of the same on test bench during development stage instead vehicle level validation.


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    Title :

    Torsional Fluctuations Consideration while Design of Synchro Rings


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Powertrains, Fuels & Lubricants Meeting ; 2018



    Publication date :

    2018-09-10




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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