Flutter analysis of vertical-axis wind turbine blades using a simplifiedaeroelastic model
Bibliographic record
Abstract
This study investigates the aeroelastic flutter of a vertical-axis wind turbine (VAWT) blade using a two-degree-of-freedom typical section model and the unsteady aerodynamic theory.The long-term goal of this study is to develop fast, reliable analytical models for use in aeroelastic design optimization of large-scale floating offshore VAWTs.There has been renewed interest in VAWTs in recent decades since they are considered as a viable option for offshore wind power generation.Like other lifting surfaces, the blades of a VAWT are prone to aeroelastic flutter.Few analytical models were previously developed for the aeroelastic stability analysis of VAWTs, but virtually all used a quasi-steady aerodynamic theory in their numerical analysis.Studies on the aeroelasticity of aircraft wings have proven the inadequacy of the quasi-steady aerodynamic theory.Also, to the best of the authors' knowledge, no comprehensive parametric studies (including the effects of mass ratio, frequency ratio, and the offset between the center of mass and the elastic axis) have been made on the aeroelastic flutter of VAWTs blades.The need for such studies is felt even more now as VAWTs with lighter and longer composite blades are being considered for large-scale power generation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".