Nonlinear modeling and parameter identification of harmonic drive robotic transmissions
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Harmonic drive gears, of extensive use in robotics, exhibit a non-smooth torque transmission characteristic that significantly influences the dynamic behavior of the driving and driven elements. In this paper, the authors propose a mechanical model for the joint transmission unit that takes into account compliance, dynamic friction, static friction (startup torque) and hysteresis, the last two items also depend on the load history of the harmonic drive. Based on a series of quasistatic and stationary dynamic experiments, the authors describe a scheme to identify all necessary parameters. Finally, the quality of the model and parameters is verified experimentally with respect to its dynamic behavior by driving the actual system and the model with the same input and comparing the output signals.
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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