Abstract
Designing low cost wind turbines having long fatigue lifetimes and low cyclic component and system loads is a major goal of the Federal Wind Energy Program and the wind industry. To achieve this goal, predictions derived from analytical models of complex and dynamically coupled systems are necessary. These models are necessary in order to capture the complex kinematic and dynamic couplings exhibited by the HAWT (Horizontal Axis Wind Turbine). In this paper interactions between the rotor and tower for a two-bladed teetering hub wind turbine are examined. Several turbine design parameters including tip-brake mass, blade structural pre-twist, tower shadow intensity, and system natural frequencies directly affect the predicted blade and system loads. Figure 1 for example shows the effects blade-tip-brake mass might have on predicted blade-root edgewise-bending moments for a particuliar two-bladed teetering hub turbine under study. We use the ADAMS (Automatic Dynamic Analysis of Mechanical Systems) software and the Oregon State University FAST (Fatigue, Aerodynamics, Structures, and Turbulence) codes to show these parameters on predicted rotor and system loads.
| Original language | American English |
|---|---|
| Pages | 253 |
| Number of pages | 1 |
| State | Published - 1995 |
| Event | Proceedings of the Energy-Sources Technology Conference and Exhibition - Houston, TX, USA Duration: 29 Jan 1995 → 1 Feb 1995 |
Conference
| Conference | Proceedings of the Energy-Sources Technology Conference and Exhibition |
|---|---|
| City | Houston, TX, USA |
| Period | 29/01/95 → 1/02/95 |
NREL Publication Number
- ACNR/CP-16571
