Decomposition-Based Assembly Synthesis of Multiple Structures for Minimum Manufacturing Cost
| Autor: | Kazuhiro Saitou, Onur L. Cetin |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Mathematical optimization
Engineering business.industry Mechanical Engineering Crossover Automotive industry Structural engineering Modular design Computer Graphics and Computer-Aided Design Multi-objective optimization Manufacturing cost Computer Science Applications Mechanics of Materials Minification business Engineering design process Size effect on structural strength |
| Zdroj: | Journal of Mechanical Design. 127:572-579 |
| ISSN: | 1528-9001 1050-0472 |
| DOI: | 10.1115/1.1897409 |
| Popis: | An extension of decomposition-based assembly synthesis for structural modularity is presented where the early identification of shareable components within multiple structures is posed as an outcome of the minimization of estimated manufacturing costs. The manufacturing costs of components are estimated under given production volumes considering the economies of scale. Multiple structures are simultaneously decomposed, and the types of welded joints at component interfaces are selected from a given library, in order to minimize the overall manufacturing cost and the reduction of structural strength due to the introduction of joints. A multiobjective genetic algorithm is used to allow effective examination of trade-offs between manufacturing cost and structural strength. A new joint-oriented representation of structures combined with a “direct” crossover is introduced to enhance the efficiency of the search. A preliminary case study with two simplified aluminum space frame automotive bodies is presented to demonstrate that not all types of component sharing are economically justifiable under a certain production scenario. |
| Databáze: | OpenAIRE |
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