Attitude control of spacecraft using space manipulators
Why this work is in the frame
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Bibliographic record
Abstract
Application of linear and nonlinear control methodologies for studying the nonlinear dynamics of a spacecraft with an attached rigid link is demonstrated. Three control laws; based on linear PD control, linear quadratic control, and feedback linearization technique, are incorporated to the system dynamics. The performances of the proposed control methodologies undergoing initial inplane disturbances are compared via numerical simulations. Results indicate that control based on PD and feedback linearization demonstrated similar performances when applied to restore the attitude of the spacecraft. The control techniques were able to stabilize the spacecraft pitch response in less than 0.003 orbits. The attached link although refrains to an oscillating motion due to the presence of gravitational force, its period of oscillation being approximately equal to the period of one orbit. The performance of LQR control indicates that it is possible to stabilize the motion of spacecraft pitch and the rigid link.
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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 | 0.000 |
| 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) | 0.000 | 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 it