Structural Damping of Shuttle Orbiter and Ascent Vehicles,
Abstract
Experimental structural mode damping factor data are presented for an actual full size vehicle structure. These data were obtained from vibration test programs ocnducted during development of the shuttle orbiter vehicle. Results show average values of structural damping factor range from 0.017 to 0.032. Theoretical analysis indicates a primary source of energy dissipation due to air mass displacement is directly dependent on amplitude of motion. An analysis of frictional energy loss develops a relation between viscous damping factor and coulomb friction. The theoretical and analytical development provides a basis for understanding and interpreting the test results. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1984
- Accession Number
- ADP004708
Entities
People
- D. L. Jensen