A multiscale design methodology is proposed for hierarchical material and product systems with random field uncertainty that propagates across multiple length scales. Using the generalized hierarchical multiscale decomposition pattern in multiscale modeling, a set of computational techniques is developed to manage the system complexity. Design of experiments and metamodeling strategies are proposed to manage the complexity of propagating random field uncertainty through three generalized levels of transformation: the material microstructure random field, the material property random field, and the probabilistic product performance. Multilevel optimization techniques are employed to find optimal design solutions at individual scales. A hierarchical multiscale design problem that involves a two-scale (submicro- and microscales) material design and a macroscale product (bracket) design is used to demonstrate the applicability and benefits of the proposed methodology.
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April 2010
Research Papers
A Multiscale Design Methodology for Hierarchical Systems With Random Field Uncertainty
Wei Chen,
Wei Chen
Professor
Department of Mechanical Engineering,
e-mail: weichen@northwestern.edu
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111
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Xiaolei Yin,
Xiaolei Yin
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111
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Sanghoon Lee,
Sanghoon Lee
Senior Researcher
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111
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Wing Kam Liu
Wing Kam Liu
Professor
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111
Search for other works by this author on:
Wei Chen
Professor
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111e-mail: weichen@northwestern.edu
Xiaolei Yin
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111
Sanghoon Lee
Senior Researcher
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111
Wing Kam Liu
Professor
Department of Mechanical Engineering,
Northwestern University
, 2145 Sheridan Road, Evanston, IL 60208-3111J. Mech. Des. Apr 2010, 132(4): 041006 (11 pages)
Published Online: April 13, 2010
Article history
Received:
June 8, 2009
Revised:
January 14, 2010
Online:
April 13, 2010
Published:
April 13, 2010
Citation
Chen, W., Yin, X., Lee, S., and Liu, W. K. (April 13, 2010). "A Multiscale Design Methodology for Hierarchical Systems With Random Field Uncertainty." ASME. J. Mech. Des. April 2010; 132(4): 041006. https://doi.org/10.1115/1.4001210
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