Supersonic flutter analysis of annular/circular sandwich panels containing magnetorheological fluid
Bibliographic record
Abstract
The present study investigates the effect of magnetorheological fluids on the aeroelastic stability and flutter boundaries of the circular/annular magnetorheological (MR) sandwich plates in a supersonic airflow. The linear piston theory is employed to formulate the external force applied to the structure due to the aerodynamic pressure. The classical plate theory along with Hamilton’s principle is used to derive governing equations of motion of the sandwich plate. The assumed mode method is utilized to solve the equations and identify the flutter boundaries of the structure. In order to demonstrate validity of the developed model, an experiment is conducted on a circular MR sandwich plate to characterize dynamic properties of the structure, under different levels of the magnetic field, in terms of the resonant frequencies. Then, the verified model is employed to investigate the effects of MR fluid, magnetic field, boundary condition and inner/outer radius of the circular/annular MR sandwich plate on the aerodynamic instability of the structure. The results highlight the significance of the MR fluid in extending flutter boundaries of the annular/circular sandwich plates in the supersonic airflow.
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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 | 0.000 | 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".