Lightweight flywheel containment

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873614

Smith, James R ^[1]

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1. Livermore, CA

A lightweight flywheel containment composed of a combination of layers of various material which absorb the energy of a flywheel structural failure. The various layers of material act as a vacuum barrier, momentum spreader, energy absorber, and reaction plate. The flywheel containment structure has been experimentally demonstrated to contain carbon fiber fragments with a velocity of 1,000 m/s and has an aerial density of less than 6.5 g/square centimeters. The flywheel containment, may for example, be composed of an inner high toughness structural layer, and energy absorbing layer, and an outer support layer. Optionally, a layer of impedance matching material may be utilized intermediate the flywheel rotor and the inner high toughness layer.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of Californaia (Oakland, CA)
• Patent Number(s): US 6203924
• OSTI ID: 873614
• Country of Publication: United States
• Language: English

Related Subjects

lightweight
flywheel
containment
composed
combination
layers
various
material
absorb
energy
structural
failure
vacuum
barrier
momentum
spreader
absorber
reaction
plate
structure
experimentally
demonstrated
contain
carbon
fiber
fragments
velocity
000
aerial
density
square
centimeters
example
inner
toughness
layer
absorbing
outer
support
optionally
impedance
matching
utilized
intermediate
rotor
outer support
energy absorber
carbon fiber
containment structure
support layer
energy absorbing
impedance matching
various layers
vacuum barrier
flywheel containment
structural failure
square centimeter
various material
absorbing layer
lightweight flywheel
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