Tolerance design optimization of machine elements using genetic algorithm |
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| Authors: | A Noorul Haq K Sivakumar R Saravanan V Muthiah |
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| Affiliation: | (1) Department of Production Engineering, National Institute of Technology, Tiruchirappalli, 620015, India;(2) Department of Production Engineering, J.J. College of Engineering and Technology, Tiruchirappalli, 620009, India;(3) Department of Mechanical Engineering, J.J. College of Engineering and Technology, Tiruchirappalli, 620009, India |
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| Abstract: | An important problem that faces design engineers is how to assign tolerance limits. In practical applications, tolerances are most often assigned as an informal compromise between functionality, quality and manufacturing cost. Frequently, the compromise is obtained iteratively by trial and error. A more scientific approach is often desirable for better performance. In this paper, a genetic algorithm (GA) is used for the design of tolerances of machine elements to obtain the global optimal solution. The objective is to design the optimum tolerances of the individual components to achieve the required assembly tolerance, zero percentage rejection of the components and minimum cost of manufacturing. The proposed procedure using GA is described in this paper for two tolerance design optimization problems: gear train and overrunning clutch assemblies. Results are compared with conventional techniques and the performances are analyzed. |
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| Keywords: | Design optimization Genetic algorithm Tolerance |
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