Interlayer toughening of fiber composite flywheel rotors

Patent · Tue Jul 14 04:00:00 EDT 1998

OSTI ID:672503

Groves, S E; Deteresa, S J

An interlayer toughening mechanism is described to mitigate the growth of damage in fiber composite flywheel rotors for long application. The interlayer toughening mechanism may comprise one or more tough layers composed of high-elongation fibers, high-strength fibers arranged in a woven pattern at a range from 0{degree} to 90{degree} to the rotor axis and bound by a ductile matrix material which adheres to and is compatible with the materials used for the bulk of the rotor. The number and spacing of the tough interlayers is a function of the design requirements and expected lifetime of the rotor. The mechanism has particular application in uninterruptable power supplies, electrical power grid reservoirs, and compulsators for electric guns, as well as electromechanical batteries for vehicles. 2 figs.

• Research Organization: University of California
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5,778,735/A/
• Application Number: PAN: 8-649,390
• OSTI ID: 672503
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
33 ADVANCED PROPULSION SYSTEMS
FIBERS
FLYWHEEL ENERGY STORAGE
FLYWHEEL-POWERED VEHICLES
FLYWHEELS
LAYERS
MATRIX MATERIALS
MECHANICAL PROPERTIES
REINFORCED MATERIALS
ROTORS