BS ISO 21648:2008

Foreword
Introduction
1 Scope
2 Terms, definitions, symbols and abbreviated terms
  2.1 Terms and definitions
  2.2 Symbols
  2.3 Abbreviated terms
3 Requirements
  3.1 General requirements
  3.2 Design requirements
  3.3 Requirements for materials
  3.4 Fabrication and process control
  3.5 Quality assurance
  3.6 Repair and refurbishment
  3.7 Storage requirements
  3.8 Transportation requirements
4 Verification requirements
  4.1 Design requirements verification
  4.2 Qualification tests
  4.3 Acceptance tests
Bibliography

Describes the design, analysis, material selection and characterization, fabrication, test and inspection of the flywheel module (FM) in a flywheel used for energy storage in space systems.

This International Standard establishes the design, analysis, material selection and characterization, fabrication, test and inspection of the flywheel module (FM) in a flywheel used for energy storage in space systems. These requirements, when implemented on a flywheel module, will ensure a high level of confidence in achieving safe operation and mission success. With appropriate modifications, this International Standard can also be applied to similar devices, such as momentum and reaction wheels and control-moment gyroscopes.

The requirements set forth in this International Standard are the minimum requirements for flywheel modules in flywheels used in space flight applications. They are specifically applicable to the parts in the flywheel rotor assembly (FRA), including rim, hub and/or shaft and other associated rotating parts, such as the bearings and the motor generator rotor. The requirements are also relevant to the non-rotating parts, such as module housing, main suspension assembly (magnetic or rolling element bearings, superconductor bearings, etc.), motor stator, caging mechanism and sensors within the module housing, and backup bearings, if applicable. However, control and interface electronics are not covered in this International Standard.