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Record W60841607

Method based on Chebyshev polynomials theories for aeroservoelastic interactions studies on a F/A-18 aircraft

2006· article· en· W60841607 on OpenAlexaff
Ruxandra Mihaela Botez, Alin Dorian Dinu, Iulian Cotoi

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAeroelasticity and Vibration Control
Canadian institutionsÉcole de Technologie SupérieureUniversité du Québec à Montréal
Fundersnot available
KeywordsChebyshev polynomialsMathematicsOrthogonalityFlutterPadé approximantLaplace transformMathematical analysisApplied mathematicsSquare (algebra)AerodynamicsFrequency domainDomain (mathematical analysis)GeometryPhysics
DOInot available

Abstract

fetched live from OpenAlex

A significant aspect of aeroservoelasticity is the conversion of unsteady aerodynamic forces from the frequency domain into the Laplace domain. Until now, the most popular methods used for these studies have been the Minimum State and the Least Square methods. The classical method is the Least Square method based on Pade polynomials approximations. We present a new method for these studies, based on Chebyshev polynomials and their orthogonality properties. Results obtained by this method are compared to results obtained by the Pade method. Two sets of results are presented for this comparison. The first shows the values of the aerodynamic forces in the Laplace domain and the second shows the flutter speeds and frequencies. In both cases, different approximation orders were used for comparison. The new method presented here shows very good results versus those obtained with the Pade method on the F/A-18 aircraft.

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.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.970
Threshold uncertainty score0.669

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.028
GPT teacher head0.310
Teacher spread0.283 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreMethods

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".

Quick stats

Citations0
Published2006
Admission routes1
Has abstractyes

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