Modelling the Flexural Hysteresis Behaviour of Bretelle Dampers Based on a Quasi-Static Bending Test
Bibliographic record
Abstract
Bretelle dampers are made of slack conductor pieces that are used to mitigate aeolian vibration amplitudes. Under cyclic and dynamic excitation, inter-strand friction in slack conductors causes a significant flexural hysteresis leading to the dissipation of high amounts of energies. The objective of this work is to study the flexural hysteresis of three types of slack conductors based on quasi-static bending tests and to reproduce their nonlinear hysteresis behavior using two different approaches; an analytical model using a linear Euler-Bernoulli beam coupled with a Bouc-Wen model, and a finite element model using a superposition of multifiber beam elements with material nonlinearity. The parameters of both models are identified based on the bending test results for different levels of deformation. The developed models in this study can provide a fast tool for manufacturers to identify the dynamical behavior of slack conductor and to optimize their damping properties. Furthermore, the bretelle damper model can be integrated into a conductor model in order to study the vibrational behavior of transmission lines equipped with bretelle dampers.
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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 | 0.000 | 0.001 |
| 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".