MECHANISM DESIGN, DYNAMICS MODELLING AND EXPERIMENTS OF BIONIC UNDULATING FINS
Bibliographic record
Abstract
The undulating fin propulsion is inspired by fish using Median and/or Paired Fin (MPF) mode. This mode provides advantages of the vector thrust production and small disturbance to the ambient flow field, and also it could be applied on underwater robots conveniently. Two bionic undulating fins are designed to imitate the structure and function of undulating fin of aquatic animals, which are fixed-waveform mode and independently-driven mode. The active deformation of bionic undulating fins is described by a kinematic model. Base on the kinematic model, a simplified computational model is derived theoretically to analyse the dynamics of the bionic propulsor. The dynamic model considers six components of forces and moments. The dynamics performance related to the geometric parameters, undulating parameters as well as the carrier velocity are further discussed through simulation. Furthermore, the above analytic method is verified through the thrust/moment and velocity test using the bionic propulsor.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".