Metal working – Method of mechanical manufacture – Wheel making
Patent
1998-05-12
2000-02-29
Echols, P. W.
Metal working
Method of mechanical manufacture
Wheel making
264257, B21D 5326
Patent
active
060293500
ABSTRACT:
A fiber reinforced composite flywheel for energy storage has a plurality of disks in the form of a coil produced of continuous hoop and radial fibers, each disk having a mix of fiber types in the hoop direction, relatively strong fibers disposed about an inner section of the disk, an intermediate section of the disk comprised of relatively strong and relatively lower strength fibers, and an outer portion having a mix of fibers fewer relatively strong fibers. A fiber reinforced composite flywheel, alternatively or in addition, has a higher volume of radial fibers disposed about the intermediate section of the disk, to increase radial strength in a banded area of the disk subject to increased radial stress. Preferably, the disk is composed with a 3-dimensional orthogonal weave architecture which allows the fibers to shear during weaving to provide minimum distortion of the spiral woven disk. Constructing a spiral woven composite flywheel disk in accordance with the invention optimizes stress and strength properties to increase operating speed and energy storage capacity at minimum cost.
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Berechnung und Dimensionierung von Faserverbund-Schwungradern zur Energiespeicherung, Konstruktion, Spring 1981.
"Toward Optimizatioin of the Woven Flywheel" by Alan D. Sapowith and William E. Handy-Aug. 1981.
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Project Summary-Project Title: Evaluation of Composite Flywheel Materials Construction-Principal Investigator: Alan D, Sapowith Aug. 1979-Sea 1980.
Design and Fabrication of a Fiberglass Circular-Weave Composite Flywheel by Alan D. Sapowith and Arthur L. Gurson-Jan. 1983.
Hoon Douglas M.
Maass David
Echols P. W.
GKN Westland Aerospace Inc.
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