Analysis and Solution of Gear Knock of Manual Transmission
Bibliographic record
Abstract
Manual transmission gear knocking is a common transmission noise. It is the noise generated by the continuous impact of the non-working tooth surfaces of the active tooth and the passive tooth of the gearbox hollow sleeve gear under the excitation of the engine torque vibration. Gear knocking noise is an obvious broadband noise characteristic in the cab, which cannot be effectively eliminated by optimizing the acoustic package of the vehicle alone. The common solution in engineering is to reduce the clearance of the gear pair and reduce the speed fluctuation and torque vibration at the input end of the transmission to eliminate the knocking noise. This paper takes a manual transmission gear knocking problem in the actual production process as an example, starts from the mechanism of gear knocking, analyses the transmission gear knocking noise, analyses the transmission gear knocking problem through noise testing, engine torsional vibration testing and driver and passenger subjective evaluation, and verifies the improvement measures through experiments. Finally determine the solution for the gear knocking noise.
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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 | 0.001 | 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".