This paper presents some approaches to the optimal design of stacked-ply composite flywheels. The laminations of the disk are constructed such that the principal fiber direction is either tangential or radial. Here, optimization problems are formulated to maximize the energy density of the flywheel. This is accomplished by allowing arbitrary, continuous, variation of the orientation of the fibers in the radial plies. The paper compares designs based on minimizing cost functions related to the (i) the maximum stress, (ii) the maximum strain and (iii) the Tsai-Wu failure criteria. It is shown that the optimized designs provide an improvement in the flywheel energy density when compared to a standard stacked-ply design. The results also show that, for a given disk design, the estimate of the energy density can vary greatly depending on the failure criteria employed.
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ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 24–28, 2005
Long Beach, California, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4739-X
PROCEEDINGS PAPER
A Comparison of Optimized Stacked-Ply Flywheel Designs That Are Based on Different Failure Criteria
Brian C. Fabien
Brian C. Fabien
University of Washington, Seattle, WA
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Brian C. Fabien
University of Washington, Seattle, WA
Paper No:
DETC2005-84633, pp. 371-380; 10 pages
Published Online:
June 11, 2008
Citation
Fabien, BC. "A Comparison of Optimized Stacked-Ply Flywheel Designs That Are Based on Different Failure Criteria." Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 2: 31st Design Automation Conference, Parts A and B. Long Beach, California, USA. September 24–28, 2005. pp. 371-380. ASME. https://doi.org/10.1115/DETC2005-84633
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