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Record W1481185885

Optopiezothermoelastic actions and micro-control sensitivity analysis of cylindrical opto-mechanical shell actuators

2002· article· en· W1481185885 on OpenAlexaff
H. S. Tzou, Baojiang Liu, David Cseledy

Bibliographic record

VenueJournal of Theoretical and Applied Mechanics/Mechanika Teoretyczna i Stosowana · 2002
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAdaptive optics and wavefront sensing
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsActuatorMechanical energySensitivity (control systems)Materials scienceCylinderThermoelastic dampingPiezoelectricityBendingEnergy harvestingMechanical engineeringThermalEnergy (signal processing)EngineeringComposite materialElectronic engineeringElectrical engineeringPhysics
DOInot available

Abstract

fetched live from OpenAlex

Opto-mechanical actuators controlled by high-energy lights represent a new class of non-contact precision actuators based on the photodeformation process. The photodeformation process involves two fundamental opto-piezo(electric)thermoelastic coupling phenomena: 1) the photovoltaic effect and 2) the converse piezoelectric effect. Irradiating high-energy lights, such as lasers or ultraviolet lights, on a certain class of photostrictive materials can trigger the photodeformation and, consequently the induced photodeformation can be used for non-contact precision actuation and control. In the process of photodeformation, the temperature induced pyro-electric effect and the thermal strain effect also affect the overall response. This paper is to evaluate the micro-actuation sensitivity and spatial effectiveness of distributed opto-mechanical shell actuators. Mathematical modeling of a circular cylinder laminated with a segmented opto-mechanical actuator patch is presented first, followed by analytical solution procedures. Various design parameters and micro-control actions, e.g., membrane control, bending control, actuator location, actuator length/size, are evaluated and their modal control sensitivities are reported. Time histories of free and controlled responses are demonstrated.

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: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.003

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 communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.009
GPT teacher head0.215
Teacher spread0.206 · 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

Citations9
Published2002
Admission routes1
Has abstractyes

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