Tolerance analysis in straight-build mechanical assemblies using a probabilistic approach-2D assembly. | [Mehran University Research Journal of Engineering and Technology • 2013]

Author(s):

1. Tanweer Hussain: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan

2. Abdul Fatah Abbasi: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan

3. Jawaid Daudpoto: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan

Abstract:

Product quality in mechanical assemblies is determined by the dispersion of manufacturing variance during the structure building. This paper focuses on straight-build assembly and proposes a probabilistic approach based on connective assembly model to analyze the effect of individual component variations on the eccentricity of the straight-build assembly. The probabilistic approach calculates the pdf (probability density function) of key assembly variation of rotor assembly of high speed rotating machines. The probabilistic approach considers two straight-build scenarios: (i) Best Build; and (ii) Direct Build, for 2D (Two-Dimensional) "axi-symmetric" assemblies. Numerical examples are presented to investigate the probabilistic approach for its efficiency and accuracy in comparison to MCS (Monte Carlo simulation).

Page(s): 319-328

DOI: DOI not available

Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 32, Issue: 2, Year: 2013

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