Rim for rotary inertial energy storage device and method

Patent · Tue Jan 01 00:00:00 EST 1980

OSTI ID:863494

Pollard, Roy E ^[1]

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1. Powell, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4187738
• OSTI ID: 863494
• Country of Publication: United States
• Language: English

Related Subjects

rim
rotary
inertial
energy
storage
device
method
directed
improved
high-performance
flywheel
fabricated
resin
impregnated
filamentary
material
circumferentially
wound
side-by-side
relationship
form
plurality
discretely
sequentially
formed
concentric
layers
bound
matrix
provided
prestressing
successive
layer
prescribed
tension
loading
accordance
predetermined
schedule
winding
curing
prior
forming
providing
prestress
distribution
effect
self-equilibrating
compressive
windings
counterbalances
transverse
radial
tensile
stresses
generated
rotation
inhibiting
deleterious
delamination
circumferentially wound
filamentary material
stresses generated
storage device
energy storage
side-by-side relationship
successive layer
resin matrix
inertial energy
concentric layers
layer prior
rotary inertial
improved rim
tensile stress
side-by-side relation
/74/