Fatigue life assessment framework of parallel steel wire cables subjected to high-order vortex-induced vibrations
Bibliographic record
Abstract
This study proposed a novel framework for assessing fatigue life of parallel steel wire cables (PSWCs) subjected to high-order vortex-induced vibrations (H-VIVs). Field measurements of H-VIVs on the PSWCs of the Hengmen west waterway bridge's PSWCs are first conducted. A dimensionless bending coefficient, k = n·A/L (where n is the VIVs mode, A is the VIVs amplitude, and L is the cable length), is introduced to unify the multiple influencing parameters and characterize the behavior of H-VIVs. Subsequently, numerical simulations are carried out to analyze the stress characteristics of the PSWCs. Based on the simulation results, the traditional S-N curve is transformed into a novel k-N curve. Finally, a fatigue life assessment framework is developed using Palmgren–Miner's rule. The results demonstrate that the bending coefficient k effectively links the traditional S-N curve with H-VIV-induced fatigue damage and reveals the distribution characteristics of H-VIVs. During H-VIVs, the PSWC conforms to the plane section assumption, and its fatigue characteristics are primarily determined by the fatigue properties of individual steel wires. Moreover, corroded PSWCs face a significant risk of fatigue failure, whereas those without corrosion have a sufficient lifespan.
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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".