A Robust Tolerance Design Method Based on Fuzzy Quality Loss
CAO Yan-long, MAO Jian, YANG Jiang-xin, WU Zhao-tong, WU Li-qun
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Institute of Modern Manufacturing Engineering, Zhejiang University, Hangzhou 310027, China;
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Published
05 Mar 2006
Issue Date
05 Mar 2006
Abstract
The traditional tolerance design model ignores the impact of noise factor, so that the design may be infeasible due to variations in design constraints. Based on the analysis of fuzzy factors in tolerance design and the limitations of the traditional Taguchi squared quality loss function, a fuzzy quality loss function model utilizing fuzzy theory was introduced. Concepts on fuzzy quality loss and fuzzy quality loss cost were proposed in the model. The characteristics of the new model and the advantages over the traditional Taguchi quality loss function were analyzed. A robust tolerance design model using a fuzzy quality loss function was proposed. An example was given to illustrate the proposed model. Results and comparisons show that the method is suitable and reliable, and makes the conclusions more objective and reasonable.
CAO Yan-long, MAO Jian, YANG Jiang-xin, WU Zhao-tong, WU Li-qun.
A Robust Tolerance Design Method Based on Fuzzy Quality Loss. Front. Mech. Eng., 2006, 1(1): 101‒105 https://doi.org/10.1007/s11465-005-0010-y
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