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Record W2318376326 · doi:10.2514/6.2003-1493

An Improved Neural Network Model for Nonlinear Aeroelastic Analysis

2003· article· en· W2318376326 on OpenAlexafffund
Ovidiu Voitcu, Yau Shu Wong

Bibliographic record

Venue44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference · 2003
Typearticle
Languageen
FieldPhysics and Astronomy
TopicModel Reduction and Neural Networks
Canadian institutionsUniversity of Alberta
FundersNatural Sciences and Engineering Research Council of CanadaTexas A and M University
KeywordsAeroelasticityArtificial neural networkNonlinear systemComputer scienceControl theory (sociology)AerodynamicsArtificial intelligenceEngineeringAerospace engineeringPhysics

Abstract

fetched live from OpenAlex

An improved neural network-based method for predicting nonlinear oscillations in the aeroelastic response is presented. An articial neural network is trained using the limited available information of a short transient data set, and the asymptotic state of the signal is reconstructed by a multi-step (or recursive) prediction process. An enhanced two-layer feedforward neural network with features that control the propagation of the prediction errors is designed. Methods for consistently choosing the number of network inputs and of neurons in the hidden layer for a given application are reported. The proposed predictor has been applied to wind-tunnel experimental data that model an oscillating airfoil with polynomial restoring forces, as well as to signals generated numerically by solving a dieren tial system that models a self-excited two-degree-of-freedom airfoil oscillating in pitch and plunge.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation 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: Empirical · Consensus signal: none
Teacher disagreement score0.009
Threshold uncertainty score0.017

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

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.

Opus teacher head0.013
GPT teacher head0.257
Teacher spread0.243 · 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 source (direct Gemma or distilled Codex), not a consensus.

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

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

Citations10
Published2003
Admission routes2
Has abstractyes

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