SBIR-STTR Award

A composite material flywheel for energy storage
Profile last edited on: 3/6/02

Program
SBIR
Agency
NASA | GSFC
Total Award Amount
$546,793
Award Phase
2
Principal Investigator
Douglas M Ries
Activity Indicator

Company Information

FARE Inc

4321 Hartwick Road Suite 116
College Park, MD 20740
   (301) 864-2544
   N/A
   N/A
Multiple Locations:   
Congressional District:   05
County:   Prince Georges

Phase I

Phase I year
1989
Phase I Amount
$49,416
An innovative composite-material flywheel design suited for the GSFC/UOM, magnetically suspended, energy-storage flywheel rotor will be developed. The rotor is an interference-assembled (i.e. prestressed) collection of composite-material, thin rings that, when assembled together, collectively form a thick ring flywheel rotor. There are no spokes or stress concentration geometries on this rotor, and, with proper design, the specific energy densities of the rotor can approach their theoretical design limit. The rotor can operate reliably with minimum containment. Rotor stresses will be computed, and performance will be optimized. Fabrication methodologies and composite-material properties will be investigated with the end objective of selecting the most suitable materials and fabrication method to prepare and cure the composite rotor.

Potential Commercial Applications:
Applications of high-strength, fatigue-resistant composites include flywheels for space energy storage and attitude control and ultra-high-strength, high-reliability pressure vessels and missile casings.STATUS: Project Proceded to Phase II

Phase II

Phase II year
1990 (last award dollars: 1990)
Phase II Amount
$497,377
___(NOTE: Note: no official Abstract exists of this Phase II projects. Abstract is modified by idi from relevant Phase I data. The specific Phase II work statement and objectives may differ)___ An innovative composite-material flywheel design suited for the GSFC/UOM, magnetically suspended, energy-storage flywheel rotor will be developed. The rotor is an interference-assembled (i.e. prestressed) collection of composite-material, thin rings that, when assembled together, collectively form a thick ring flywheel rotor. There are no spokes or stress concentration geometries on this rotor, and, with proper design, the specific energy densities of the rotor can approach their theoretical design limit. The rotor can operate reliably with minimum containment. Rotor stresses will be computed, and performance will be optimized. Fabrication methodologies and composite-material properties will be investigated with the end objective of selecting the most suitable materials and fabrication method to prepare and cure the composite rotor.

Potential Commercial Applications:
Applications of high-strength, fatigue-resistant composites include flywheels for space energy storage and attitude control and ultra-high-strength, high-reliability pressure vessels and missile casings.STATUS: Project Proceded to Phase II