Solar Panel Deployment Using Shape Memory Alloy Actuator
Bibliographic record
Abstract
View Video Presentation: https://doi.org/10.2514/6.2021-1608.vid In this project, it is intended to apply the design methodologies of Shape Memory Alloys (SMA) acting as a linear actuator in a mechanical system. The object of study is a prototype satellite with a solar panel attached with a rotational hinge. The displacement of the linear actuator results in the deployment of the solar panel within the designed time of actuation. A bias tensile spring acts as the resistive load in order to deploy the panel. A dynamic simulation is performed, intending to characterize the variation of the tensile force of the actuator over time. The methodology of calculation for the SMA design, as well as the numerical results are presented. The design resulted in a selection of a Nitinol wire with 0.15mm diameter to be used as the linear actuator. The control method to deploy the panel is also presented. Finally, an experiment is conducted where the selected wire is implemented and tested successfully.
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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) | 0.004 | 0.001 |
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".