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Record W2800320792 · doi:10.1139/tcsme-2000-0021

OPTIMIZATION OF ADAPTIVE TRUSS STRUCTURES USING THE FINITE ELEMENT FORCE METHOD BASED ON COMPLEMENTARY ENERGY

2000· article· en· W2800320792 on OpenAlex
Ramin Sedaghati, B. Tabarrok, Afzal Suleman, S. Dost

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.
venuePublished in a venue whose home country is Canada.

Bibliographic record

VenueTransactions of the Canadian Society for Mechanical Engineering · 2000
Typearticle
Languageen
FieldEngineering
TopicTopology Optimization in Engineering
Canadian institutionsUniversity of Victoria
Fundersnot available
KeywordsTrussSequential quadratic programmingFinite element methodCompatibility (geochemistry)Mathematical optimizationEnergy minimizationA priori and a posterioriTopology optimizationMinificationMaximizationMathematicsComputer scienceQuadratic programmingApplied mathematicsStructural engineeringEngineering

Abstract

fetched live from OpenAlex

A structural analysis and optimization method is developed to find the optimal topology of adaptive determinate truss structures in the presence of various loading conditions. The objective function is based on the maximization of the structural strength subject to geometric constraints. The structural analysis is based on the finite element force method using the complementary strain energy and the optimization procedure is based on the Sequential Quadratic Programming (SQP) method. Equilibrium equations are satisfied a priori and compatibility conditions are derived through minimization of the complementary energy, which allows the calculation of element forces without explicitly generating the compatibility conditions. Additionally, the selection of the redundant members has been automated through the Gauss elimination technique. The proposed method has performed well and it is extremely efficient in geometry optimization of adaptive truss structures where the primary design variables are the active member forces.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.641
Threshold uncertainty score0.640

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 head0.013
GPT teacher head0.224
Teacher spread0.210 · 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