The experiments to loosen bolted joints and joints with double nuts and eccentric nuts were carried out using Junker’s machine and NAS machine. As the results, no loosening was found in the bolted joints with the market-sold eccentric nuts and the conventional nuts in almost all joints were loosened. In addition, in order to know the loosening mechanism, several finite element analyses were performed and reproduced the phenomenon that the bolts were loosened, or the nut rotates, when the repeated transverse loads were applied. Based on this result, the mechanism of the bolt loosening (the nut rotation) is investigated.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental Evaluation of Screw Thread Loosening in Bolted Joints with Some Parts and Analytical Approach of Loosening Mechanism of the Joints under Repeated Transverse Loadings


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2006 World Congress & Exhibition ; 2006



    Publication date :

    2006-04-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    A study of loosening and fatigue of bolted joints under transverse vibration

    Hashimura,S. / Socie,D.F. / Kurume National College of Technology,JP et al. | Automotive engineering | 2005


    An Experimental Study of Self-Loosening of Bolted Joints

    Jiang, Yanyao | Online Contents | 2004


    A Study of Loosening and Fatigue of Bolted Joints under Transverse Vibration

    Socie, Darrell F. / Hashimura, Shinji | SAE Technical Papers | 2005