Dynamics of a rotor-structure-soil system: transient response by iterative coupling
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
Abstract In this paper, the transient dynamics of a rotor-foundation-structure-soil system is studied to obtain unbalance response of the rotor considering the influence of the structure and the unbounded soil. Transient responses are obtained through iterative coupling between the rotor subsystem and the frame-soil subsystem. The non-linear rotor subsystem is represented by a Laval rotor with rigid bearings and external and internal damping. These equations of motion are solved with the fourth-order Runge-Kutta method. The frame is modeled by the Finite Element Method, while the homogeneous half-space is modeled by the 3D Direct Boundary Element Method in the frequency domain. To derive time-domain equivalent equations of motion, a methodology is proposed based on extracting modal parameters from Frequency Response Functions of the coupled soil-foundation system, using the Rational Fraction Polynomial Method. The methodology renders transient response for the rotor and structure with small time steps, allowing an accurate simulation of the rotor runup phase and the dynamics of the system going through resonance frequencies.
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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