Design and experimental study of electromagnet-type variable pre-pressure ultrasonic motor
Bibliographic record
Abstract
The unique friction drive mode of the traveling-wave rotary ultrasonic motor (TRUM) endows it with the advantages of low speed and large torque, fast response, and self-locking for power failure. Appropriate pre-pressure is conducive to the smooth operation of TRUM and ensures its good output performance. Meanwhile, it can effectively alleviate the wear and tear of the contact surface and reduce the noise. However, the adjustment and setting of pre-pressure can be realized only in the manufacturing and assembly of TRUM rather than the operation process of TRUM. Hence, this paper designs an electromagnet-type variable pre-pressure ultrasonic motor by changing the applying mode of pre-pressure, which can adjust the pre-pressure by controlling the driving voltage of the coil. Furthermore, force and motion analysis of the core components is performed, and the basic parameters of an electromagnetic mechanism are calculated according to the design requirements. The feasibility of the motor is verified through experiments, and its voltage and frequency characteristics are analyzed. The proposed scheme has the advantages of direct transmission and fast response.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".