Estimation of aircraft component production cost using knowledge based engineering techniques |
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| Affiliation: | 1. Department of Industrial Engineering (DII), University of Naples Federico II, Piazzale Tecchio, 80 – 80125 Naples, Italy;2. Management School, University of Sheffield, Conduit Road, S1 4DT, Sheffield, UK;1. Innovative Information Industry Research Center (IIIRC), School of Computer Science and Technology, Harbin Institute of Technology Shenzhen Graduate School, HIT Campus Shenzhen University Town Xili, Shenzhen 518055, PR China;2. Shenzhen Key Laboratory of Internet Information Collaboration, School of Computer Science and Technology, Harbin Institute of Technology Shenzhen Graduate School, HIT Campus Shenzhen University Town Xili, Shenzhen 518055, PR China;3. Department of Computer Science and Information Engineering, National University of Kaohsiung, Kaohsiung, Taiwan, ROC;4. Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC;5. Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC;1. KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, B-3001 Heverlee, Belgium;2. TU Dortmund University, Institute of Forming Technology and Lightweight Construction, Baroper Straße 303, D-44227 Dortmund, Germany;3. NTNU – Department of Engineering Design and Materials, Richard Birkelandsvei 2B, N-7491 Trondheim, Norway;4. KU Leuven, Department of Materials Engineering, Kasteelpark Arenberg 44, B-3001 Heverlee, Belgium;1. Laboratoire de Génie Chimique, Université de Toulouse, CNRS, Toulouse, France;2. Altran RESEARCH, 4 Avenue Didier Daurat, Parc Centreda – Bâtiment Synapse, 31700 Blagnac, France |
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| Abstract: | A comprehensive method is presented to estimate aircraft component production costs using Knowledge Based Engineering (KBE) techniques. A suite of parametrical cost estimation blocks are treated as Cost Primitives (CPs), which contain attributes such as cost types, cost driving parameters, and cost estimation relationships. A CP is associated with a parameterized geometry and a set of specific design parameters including part/assembly types, materials and production methods. Production cost is estimated by aggregating the cost of different CPs within a tree structure integrating both product breakdown and cost breakdown structures. The cost analysis tool is integrated into a KBE application by building Capability Modules (CMs), which provide manufacturable geometric representations for cost estimation and can be used to summarize output reports for further optimization. Case studies concerning stiffened panels are carried out, verifying the accuracy of the cost estimation method and illustrating the applicability of this method together with the integrated KBE application for various aircraft components. The main contribution of this research is automating the cost integration in the design process to improve the fidelity, repeatability and traceability of cost analysis. |
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| Keywords: | Cost engineering Cost analysis Production cost Knowledge Based Engineering (KBE) Design-cost integration |
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