An Efficient Tolerances Optimization Algorithm Based in Taguchi Gradients Method

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We present in this paper an optimization algorithm based in Taguchi gradient method for statistical synthesis of tolerances, adapted to be integrated in Computer Aided Tolerancing systems. Because the analysis and the synthesis of the dimensional and geometrical tolerances are two significant tools in the simulation of the product life cycle, the algorithm for optimisation of the tolerances and calculation of performances criteria such as loss of quality, costs total, function of acceptance, were developed and implemented under MatlabTM. The precision and the simplicity of this algorithm compared to others (finite differences, soft-computing) were highlighted using a comparative study on a published assembly case.
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Computer Aided Tolerancing; CADCAM; Tolerances Analysis; Tolerances Optimisation; Statistical Synthesis of Tolerances; Tagouchi Method

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