Tolerance Analysis of Mechanical Assemblies with Asymmetric Tolerances 2007-01-0407
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.
Citation: Movahhedy, M. and Khodaygan, S., "Tolerance Analysis of Mechanical Assemblies with Asymmetric Tolerances," SAE Technical Paper 2007-01-0407, 2007, https://doi.org/10.4271/2007-01-0407. Download Citation
Author(s):
Mohammad R. Movahhedy, Saeed Khodaygan
Affiliated:
School of Mechanical Engineering, Sharif University of Technology
Pages: 11
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
CAD/CAM/CAE Technology, Digital Modeling, Virtual Development and Engineering-SP-2072, SAE 2007 Transactions Journal of Materials and Manufacturing-V116-5
Related Topics:
Assembling
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