Loading...
Please wait, while we are loading the content...
Similar Documents
Approximate method for calculating free vibrations of a large-wind-turbine tower structure
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Linscott, B. S. Das, S. C. |
| Copyright Year | 1977 |
| Description | A set of ordinary differential equations were derived for a simplified structural dynamic lumped-mass model of a typical large-wind-turbine tower structure. Dunkerley's equation was used to arrive at a solution for the fundamental natural frequencies of the tower in bending and torsion. The ERDA-NASA 100-kW wind turbine tower structure was modeled, and the fundamental frequencies were determined by the simplified method described. The approximate fundamental natural frequencies for the tower agree within 18 percent with test data and predictions analyzed. |
| File Size | 1279271 |
| Page Count | 48 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780008491 |
| Archival Resource Key | ark:/13960/t2f81518w |
| Language | English |
| Publisher Date | 1977-12-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Towers Windmills Windpowered Machines Resonant Frequencies Windpowered Generators Free Vibration 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 |
