An output feedback control based on extended high-gain observer for active vibration control systems with nonlinear Galfenol-based actuators
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Bibliographic record
Abstract
This paper proposes an output feedback control for Galfenol-based actuators in active vibration control systems, capable of addressing complex challenges such as unknown actuator dynamics, unmodeled external disturbances, hysteresis, and varying loads. The main contribution is to develope an output feedback controller that ensures the actuator produces compensatory forces to effectively suppress unwanted platform motion, achieving zero displacement at the output using only the measured position, without the need for force or acceleration measurements. Simulation results validate the robustness and performance of the proposed controller under various operating conditions, including unknown loads, parameter uncertainties, and external disturbances, demonstrating its potential for implementation in precision mechatronic systems and advanced vibration mitigation applications. Furthermore, the paper investigates the controller's effectiveness while accounting for the hysteresis effects inherent in the Galfenol actuator.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.000 | 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