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A new tolerance design method for a secondary rechargeable battery using design of experiments with mixture
Author(s) -
Park Jong In,
Kim Seong Jun,
Jeong Myong K.
Publication year - 2008
Publication title -
quality and reliability engineering international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 62
eISSN - 1099-1638
pISSN - 0748-8017
DOI - 10.1002/qre.915
Subject(s) - reliability engineering , battery (electricity) , quality (philosophy) , mixing (physics) , function (biology) , process (computing) , product (mathematics) , manufacturing cost , tolerance analysis , computer science , process variation , engineering , power (physics) , engineering drawing , mathematics , mechanical engineering , philosophy , physics , geometry , epistemology , quantum mechanics , evolutionary biology , biology , operating system
Mixing errors in the manufacturing process of a mixture may cause a sizeable variation in the performance of the product, leading to the need for the tolerance design. Even though a variety of procedures have been proposed for the optimal tolerance design based on quality loss and manufacturing costs, there are no available tolerance design methods when mixing errors exist in the manufacturing process of a mixture. In this article, we propose a new tolerance design method for the case where mixing errors are involved in massive manufacturing process of a secondary rechargeable battery. Using an approximation method, we derive quality loss function, reflecting the effects of mixing errors on the product performances. Statistical design of mixture experiments is applied to build empirical models of performances as functions of component proportions in the corresponding quality loss function. A real‐life case study on the tolerance design of a secondary battery is provided for the illustration of the proposed method. The results show the efficiency of the proposed method in designing the tolerances to minimize the quality loss and manufacturing costs. Copyright © 2008 John Wiley & Sons, Ltd.