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PI and Super Twisting Sliding Mode with Smith Predictor Control Structures for SMA Actuators

2023· article· en· W4386323717 on OpenAlex

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldMaterials Science
TopicShape Memory Alloy Transformations
Canadian institutionsUniversity of Ottawa
FundersMinistry of Education
KeywordsSMA*Control theory (sociology)ActuatorController (irrigation)Sliding mode controlNonlinear systemPID controllerMode (computer interface)Fuzzy logicSmith predictorComputer scienceShape-memory alloyEngineeringControl engineeringControl (management)PhysicsArtificial intelligenceTemperature controlAlgorithm

Abstract

fetched live from OpenAlex

This paper aims to design three control solutions for nonlinear processes with Shape Memory Alloy (SMA) wire actuators viewed as controlled processes with dead time. The proposed control solutions are the PI controller with Smith predictor configuration, the sliding mode PI controller with Smith predictor configuration and the super twisting sliding mode PI controller with Smith predictor configuration. The parameters of the proposed controllers are optimally tuned using a Grey Wolf optimizer algorithm. An accurate evolved Takagi-Sugeno-Kang fuzzy model of SMA wire actuators is used to validate the control structures by simulations and their control performance is compared and evaluated.

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 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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.423
Threshold uncertainty score0.361

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 head0.019
GPT teacher head0.260
Teacher spread0.240 · 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

Quick stats

Citations0
Published2023
Admission routes1
Has abstractyes

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