Composite flywheel development, January 1--March 31, 1977

Technical Report · Thu Sep 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/7295336· OSTI ID:7295336

Huddleston, R. L.; Kelly, J. J.; Knight, C. E.

Research progress on the development of composite flywheels for use in a heat-engine/flywheel hybrid vehicle is reported. A design concept was generated for the instrumented containment assembly. Analytical results indicate that both the ''dead-weight-loaded bandwrap'' flywheel and the ''prestressed-rim bandwrap'' flywheel should significantly outperform Union Carbide Corporation-Nuclear Division's FY 1976/76T ''bandwrap composite'' flywheel. Analytical results to date indicate that the use of a hybrid rim with two or more materials of different elastic moduli, such as Kevlar-29/epoxy overwrapped with Kevlar-49/epoxy, should improve the flywheel performance. Additional transverse tensile characterization of Kevlar-49/epoxy, using three different room-temperature-curing epoxy resin formulations, resulted in no significant improvement over the approximately 1-ksi strength level previously attained in the FY 1976/76T flywheel.

• Research Organization: Oak Ridge Y-12 Plant, Tenn. (USA)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7295336
• Report Number(s): Y-2087
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250500 -- Energy Storage-- Flywheels
33 ADVANCED PROPULSION SYSTEMS
330400* -- Advanced Propulsion Systems-- Hybrid Systems
330500 -- Advanced Propulsion Systems-- Flywheel Propulsion
AUTOMOBILES
COMPOSITE MATERIALS
ENERGY STORAGE
FLYWHEEL ENERGY STORAGE
FLYWHEELS
HYBRID SYSTEMS
RESEARCH PROGRAMS
STORAGE
VEHICLES