A Slope-Based Method for Least Cost Tolerance Allocation
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Date
1995-12-01Author
Moiz Y. Nagarwala
P. Simin Pulat
Shivakumar Raman
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Abstract
In this paper, a new methodology is presented to solve the tolerance allocation-process selection problem simultaneously The prob lem is modeled using discrete and continuous variables and is transformed into a model with only continuous variables by defining an efficient tolerance-cost curve for each component Since the efficient tolerance-cost curve is neither convex nor concave, nonlinear programming method ologies cannot be directly applied The tolerance-cost curve is piecewise linearly approximated and an efficient methodology is developed to solve the problem The method starts with a solution which minimizes the objective function value but is not feasible The infeasibility is iteratively reduced in a way that the increase in the objective function value is minimal Computational analysis indicates that the method is very robust and requires negligible CPU time
Citation
Nagarwala, M. Y., Simin Pulat, P., & Raman, S. (1995). A Slope-Based Method for Least Cost Tolerance Allocation. Concurrent Engineering, 3(4), 319-328. doi: 10.1177/1063293x9500300407