With fast pacing development of automobile industry and growing needs for better driving experience, NVH performance has become an important aspect of analysis in new driveline product development especially in hybrid and electric powered vehicles. Differential bevel gear has significant role in the final drive. Unlike parallel axis gears such as spur or helical gear, bevel gear mesh shows more complicated characteristics and its mesh parameters are mostly time-varying which calls for more extensive design and analysis. The purpose of this paper is to conduct design study on a differential bevel gear unit under light torque condition and evaluate its NVH characteristics. Unloaded tooth contact analysis (UTCA) of those designs are conducted and compared for several design cases with different micro geometry to investigate their pattern position and size variation effects on NVH response. Loaded tooth contact analysis (LTCA) that is based on semi-analytical and semi-FE method is used to compare other mesh parameters such as mesh point, line-of-action (LOA) and mesh stiffness. For experimental study, several 11x16 gear pairs are tested at multiple gear positions to study the robustness of each micro geometry design. Both pattern and transmission error(TE) are correlated and compared. Result of this study proves the effectiveness and accuracy of modeling and supports the design optimization predictions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design Optimization of Differential Bevel Gear for NVH Improvement


    Additional title:

    Sae Technical Papers


    Contributors:
    Kopp, Gregory (author) / Chen, Jui (author) / Kolivand, Mohsen (author) / Peng, Ying (author) / Sun, Zhaohui (author) / Shi, Zhenghong (author)

    Conference:

    Noise and Vibration Conference & Exhibition ; 2019



    Publication date :

    2019-06-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design Optimization of Differential Bevel Gear for NVH Improvement

    Shi, Zhenghong / Chen, Jui / Kolivand, Mohsen et al. | British Library Conference Proceedings | 2019


    Asymmetrical Bevel Gear Design

    Seidler, Robert T. / Ruhland, Reinhold / Lieder, Sergej | Tema Archive | 2013


    How the bevel gear differential works

    Engineering Index Backfile | 1906


    Bevel gear tensioner

    YANG CHAO / HAN YANLIN / MA HONGWEN et al. | European Patent Office | 2023

    Free access

    Using Bevel Gear Differentials

    Geurts,F.W. / Fairchild,Winston-Salem,US | Automotive engineering | 1978