This paper presents modified relations for worst-case and root-sum-square (RSS) tolerance accumulation models for tolerance analysis of mechanical assemblies with asymmetric tolerances. The common models do not consider the sign of the sensitivity factors and thus are applicable to symmetric tolerances only. Using the new models, the accumulation of asymmetric tolerances results in asymmetric assembly tolerances. New relationships for estimation of percent contributions of individual tolerances are also introduced which yield percent contributions of upper and lower bounds of independent variables (manufacturing dimensions) on the upper and lower bounds of dependent variables (assembly dimensions). The modified methods and new relations are applied to linear and nonlinear examples and their results are discussed.


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    Title :

    Tolerance Analysis of Mechanical Assemblies with Asymmetric Tolerances


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2007



    Publication date :

    2007-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    Tolerance analysis of mechanical assemblies with asymmetric tolerances

    Movahhedy,M.R. / Khodaygan,S. / Sharif Univ.of Technol.,IR | Automotive engineering | 2007


    Tolerance Analysis of Mechanical Assemblies with Asymmetric Tolerances

    Movahhedy, M. R. / Khodaygan, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2007



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    Kim, S. K. / Kim, S. S. / Cho, Y. G. et al. | British Library Online Contents | 2016