Rim for rotary inertial energy storage device and method
Patent
·
OSTI ID:7259434
The present invention is directed to an improved rim or a high-performance rotary inertial energy storage device (flywheel). The improved rim is fabricated from resin impregnated filamentary material which is circumferentially wound in a side-by-side relationship to form a plurality of discretely and sequentially formed concentric layers of filamentary material that are bound together in a resin matrix. The improved rim is provided by prestressing the filamentary material in each successive layer to a prescribed tension loading in accordance with a predetermined schedule during the winding thereof and then curing the resin in each layer prior to forming the next layer for providing a prestress distribution within the rim to effect a self-equilibrating compressive prestress within the windings which counterbalances the transverse or radial tensile stresses generated during rotation of the rim for inhibiting deleterious delamination problems. 4 figs.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- A; US 4187738
- Application Number:
- PPN: US 5-904676
- OSTI ID:
- 7259434
- Country of Publication:
- United States
- Language:
- English
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