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Title: Rim for rotary inertial energy storage device and method

Abstract

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.

Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. Powell, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863494
Patent Number(s):
4187738
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Knight, Jr., Charles E., and Pollard, Roy E. Rim for rotary inertial energy storage device and method. United States: N. p., 1980. Web.
Knight, Jr., Charles E., & Pollard, Roy E. Rim for rotary inertial energy storage device and method. United States.
Knight, Jr., Charles E., and Pollard, Roy E. Tue . "Rim for rotary inertial energy storage device and method". United States. https://www.osti.gov/servlets/purl/863494.
@article{osti_863494,
title = {Rim for rotary inertial energy storage device and method},
author = {Knight, Jr., Charles E. and Pollard, Roy E},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

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