Abstract In Indian automobile market, customers are become more sensitive about cabin comfort in all car segments. Cabin noise is one of the important factor which plays vital role in overall passenger comfort inside vehicle. Gear whine noise is the critical factor towards customer's overall NVH perception in cabin. Gear whine is the undesirable tonal noise experienced in cabin, originated in the transmission. Reduction of gear whine noise becomes an important subject for transmission engineer in this competitive market. Transmission error acts as an excitation source during gear mesh and generates vibration which passes through gears, shafts and bearings to the housing which vibrates to produce noise. Gear whine can be minimized by t/m error optimization through optimizing gear tooth profile geometry. Traditional method of gear tooth optimization is lengthy and time consuming. This paper explains a simulation based approach to predict the gear whine at early stage of design. Targeted transmission model is prepared in Romax software by accurate modeling technique. This model is analyzed with different load conditions to get gear profile optimized for centralized gear tooth contact pattern and lower transmission error. For confirmation of software results, gear proto parts are manufactured with desired Microgeometry values. Transmission with these gears is tested on bench NVH test set up. Very good correlation is observed in gear tooth contact pattern of software and actual bench set up. This paper will present experience of simulation of Transmission model in Romax software for optimizing gear geometry and correlation with testing Results.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Simulation of Gear Microgeometry for Gear Whine Noise Reduction in Passenger Car


    Contributors:


    Publication date :

    2016-01-01


    Size :

    10 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Objective Noise Rating of Gear Whine

    Yu, Scott / Becker, Steven | SAE Technical Papers | 1999


    Objective noise rating of gear whine

    Becker,S. / Yu,S. / New Venture Gear,US | Automotive engineering | 1999


    Statistical Gear Optimization Method Against Whine Noise

    Vialonga, M.J. | British Library Conference Proceedings | 2012


    Timing Gear Whine Noise Reduction Methodology and Application in Superchargers

    Glover, R. / Wang, H. / Koval, J. et al. | British Library Conference Proceedings | 2005


    Timing gear whine noise reduction methodology and application in superchargers

    Glover,R. / Wang,H. / Koval,J. et al. | Automotive engineering | 2005