Design of Actively Tuned, Thermally Controlled Tuned-Mass Dampers
Abstract
The scenarios for the strategic defense systems will require that, for their success, the effects of structural dynamics be reduced. In many SDI structures, one vibrational mode plays a dominant role in the dynamic response, such as the first mode of a metering structure during a slew maneuver. Passive damping using tuned-mass dampers (TMD's) is a well-known, weight-efficient approach to suppressing these vibrations; only a small amount of added weight is needed to achieve relatively high levels of damping. However, to be effective, TMD's must be kept tuned to the frequency of the offending mode. A prototype TMD that would tune itself to an offending mode has been designed and built, and it will keep itself tuned to that mode, even if that mode changes frequency. Passive damping, Space structures, Tuned-mass dampers, Active control, Smart structures, Thermal regulation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1991
- Accession Number
- ADA253491
Entities
People
- Eric M. Austin
- Joseph R. Maly
- Kevin E. Smith