A data-clustering method can be a useful tool for engineering design that is based on numerical optimization. The clustering method is an effective way of producing representative designs, or clusters, from a large set of potential designs. The results presented here focus on the application of clustering to single-objective optimization results. In the case of single-objective optimization, the method is used to determine the clusters in a set of quasi-optimal feasible solutions generated by an optimizer. A data-clustering procedure based on an evolutionary method is briefly described. The number of clusters is determined automatically and need not be known a priori. The method is demonstrated by application to the results of a turbine blade coolant passage shape-optimization problem. The solutions are transformed to a lower-dimensional space for better understanding of their variance and character. Engineering information, such as the shapes and locations of the internal passages, is supported by the visualization of clustered solutions. The clustering, transformation, and visualization methods presented in this study might be applicable to the increasing interpretation demands of design optimization.
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March 2005
Article
Multidimensional Clustering Interpretation and Its Application to Optimization of Coolant Passages of a Turbine Blade
Min Joong Jeong,
Min Joong Jeong
Computational Biology Research Center, National Institute of Advanced Industrial Science and Technology, 2-43 Aomi Koto-ku, Tokyo 135-0064, Japan
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Brian H. Dennis,
Brian H. Dennis
Institute of Environmental Studies, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Shinobu Yoshimura
Shinobu Yoshimura
Institute of Environmental Studies, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Min Joong Jeong
Computational Biology Research Center, National Institute of Advanced Industrial Science and Technology, 2-43 Aomi Koto-ku, Tokyo 135-0064, Japan
Brian H. Dennis
Institute of Environmental Studies, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Shinobu Yoshimura
Institute of Environmental Studies, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Contributed by the Design Automation Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received April 24, 2003, revised June 11, 2004. Associate Editor: K. K. Choi.
J. Mech. Des. Mar 2005, 127(2): 215-221 (7 pages)
Published Online: March 25, 2005
Article history
Received:
April 24, 2003
Revised:
June 11, 2004
Online:
March 25, 2005
Citation
Jeong, M. J., Dennis , B. H., and Yoshimura, S. (March 25, 2005). "Multidimensional Clustering Interpretation and Its Application to Optimization of Coolant Passages of a Turbine Blade ." ASME. J. Mech. Des. March 2005; 127(2): 215–221. https://doi.org/10.1115/1.1830047
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