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U.S. Department of Energy
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Sandia composite-rim flywheel development

Conference ·
OSTI ID:6554860
A series of flywheel spin tests completed in March, 1978 and the status of Sandia's current rotor development program are discussed. Two designs incorporating a 20 in. OD graphite/epoxy rim were tested. Each design utilizes a different method of attaching the rim to an aluminum hub with Kevlar 49/epoxy bands. Data on rotor performance, dynamics, and failure modes were gathered. Two rotors with a pin-wrapped hub design were spun to top speeds in excess of 2500 ft/sec. This corresponds to an energy density, based upon total rotor weight, of approximately 20 Wh/lb. These tests have helped identify areas requiring further research. In particular, there is a need for predictive dynamic analysis for this class of flywheel.
Research Organization:
Sandia Labs., Albuquerque, NM (USA)
DOE Contract Number:
EY-76-C-04-0789
OSTI ID:
6554860
Report Number(s):
SAND-78-1865C; CONF-781046-3
Country of Publication:
United States
Language:
English

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