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Vibration characteristics of a deployable controllable-geometry truss boom
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dorsey, J. T. |
| Copyright Year | 1983 |
| Description | An analytical study was made to evaluate changes in the fundamental frequency of a two dimensional cantilevered truss boom at various stages of deployment. The truss could be axially deployed or retracted and undergo a variety of controlled geometry changes by shortening or lengthening the telescoping diagonal members in each bay. Both untapered and tapered versions of the truss boom were modeled and analyzed by using the finite element method. Large reductions in fundamental frequency occurred for both the untapered and tapered trusses when they were uniformly retracted or maneuvered laterally from their fully deployed position. These frequency reductions can be minimized, however, if truss geometries are selected which maintain cantilever root stiffness during truss maneuvers. |
| File Size | 1106750 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830020220 |
| Archival Resource Key | ark:/13960/t72v7cj3s |
| Language | English |
| Publisher Date | 1983-06-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Tapering Finite Element Method Dynamic Characteristics Vibration Booms Equipment Deployment Cantilever Beams Trusses Large Space Structures Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
