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An Axiomatic Approach for “Target Cascading” of Parametric Design of Engineering Systems |
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| Authors: | Ping GeStephen C.-Y. Lu Nam P. Suh |
| Affiliation: | a Department of Mechanical Engineering, Oregon State University, Corvallis, OR, USA b IMPACT Laboratory, School of Engineering, University of Southern California, Los Angeles, CA, USA c Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA |
| Abstract: | Complex engineering system realization involves finding out design specifications that simultaneously achieve performance objectives at different levels. A common practice in industry is to adopt “Target Cascading” to obtain proper settings of the performance objectives, and find out those design specifications, not necessarily optimal, but satisfying all the desirable component-level, subsystem-level and system-level performance objectives. In this paper, an Axiomatic Approach to “Target Cascading” (AATC) is presented to improve the current “Target Cascading” process. AATC uses axioms to guide the decompositions of performance objectives, and an integration of a hybrid meta-modeling tool and direct synthesis method to enhance both robustness and efficiency. The preliminary results of AATC's industrial applications demonstrate its advantage in improving productivity at the early stage parametric design, especially for complex engineering systems. |
| Keywords: | Design System Axiom |
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