An acoustic-structural model for pedestal-radiated noise during ball bearing angular acceleration
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
The purpose of this paper is to numerically investigate the noise characteristics of a pedestal during rolling element bearing angular acceleration while under radial load. A dynamic model was built for the calculation of excitation of the pedestal during angular acceleration, taking account of contact forces and friction forces between rolling elements and the races and skidding of rolling elements. The displacement of the outer race obtained from the dynamic model was then used in the pedestal finite element model and the vibration of the pedestal was obtained by performing transient dynamic analysis using ANSYS. The structural vibration acceleration of the pedestal was used as a boundary condition for the pedestal boundary element model and the sound pressure level was computed using LMS-SYSNOISE. Finally, the pedestal-radiated noise characteristics and how much the pedestal-radiated noise can be affected by design parameters, such as friction coefficient and radial load, was investigated. The proposed model and the results of the present paper could aid in the design of low-noise rolling element bearings and help solve the noise problem related to such bearings.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| 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