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Title: Lightweight flywheel containment

Abstract

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.

Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873614
Patent Number(s):
6203924
Assignee:
Regents of University of Californaia (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /428/74/

Citation Formats

Smith, James R. Lightweight flywheel containment. United States: N. p., 2001. Web.
Smith, James R. Lightweight flywheel containment. United States.
Smith, James R. Mon . "Lightweight flywheel containment". United States. https://www.osti.gov/servlets/purl/873614.
@article{osti_873614,
title = {Lightweight flywheel containment},
author = {Smith, James R.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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