| 摘要 |
The windmill blade (2) has a built-in containers (4) comprising tuned liquid dampers (TLD) which are partly filled with liquid. The liquid can swash freely with a wave frequency which, out of regard for the expected G-effect on the liquid during operation of the blade, is tuned to the ascertained natural frequency of the blade. The containers decrease in transverse length out towards the blade tip, and the liquid filling height, measured as a liquid layer out against a side surface of each container facing outwardly towards the blade, is lower in the outermost containers than in the innermost ones. |
