THE EQUATION DERIVATION AND ANALYSIS OF MESHING EFFICIENCY FOR A STRAIGHT SPUR GEAR PAIR
Bibliographic record
Abstract
According to the concept of “Stribeck Curve” proposed by Downson, this paper proposes modified coefficients for the calculation of average friction coefficients for approach and recess. Based on the research of Buckingham, this paper derives the theoretical meshing efficiency equation of straight spur gear pair. And, based on the involute theorem, the average sliding velocities for approach and recess are obtained. The corresponding modified average friction coefficients for approach and recess are obtained. Finally, according to modified average friction coefficients and meshing efficiency equation, the meshing efficiencies for straight spur gear pair (15, 79) are analyzed to be 99.04–99.62%. The best meshing efficiency occurs at pinion speed 800–1500 rpm. Based on the proposed approach, the meshing efficiencies of all spur gear pairs can be analyzed. The results of this paper will contribute to engineers in the design of straight spur gear reducers.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".