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Record W3202448954 · doi:10.11575/prism/39273

Conceptual design methods for small-scale supersonic uncrewed aerial vehicles

2021· dissertation· en· W3202448954 on OpenAlexaboutno aff
Benjamin Dalman

Bibliographic record

VenueOpen MIND · 2021
Typedissertation
Languageen
FieldEngineering
TopicRocket and propulsion systems research
Canadian institutionsnot available
Fundersnot available
KeywordsSupersonic speedScale (ratio)Aerospace engineeringConceptual designMarine engineeringAeronauticsEngineeringEnvironmental scienceComputer scienceGeographyCartographyMechanical engineering

Abstract

fetched live from OpenAlex

An investigation of conceptual design methods used for small-scale supersonic uncrewed aerial vehicles (SSUAV) was performed to facilitate future SSUAV design work. Verification and validation analyses of the Stanford University Aerospace Vehicle Environment (SUAVE) was conducted for various fidelity aerodynamics, stability, and propulsion modules. A new weights module, tailored for SSUAV concepts, was developed and implemented into SUAVE. The performance of a new SSUAV concept, the University of Calgary multipurpose unmanned fixed-wing advanced supersonic aircraft (MUFASA), was assessed and compared to two existing designs (GOJETT and M2011). Performance metrics of takeoff distance, maximum flight Mach number, and cruise range were used. As each vehicle design is different, a system was setup to compare them across differing scales. A variety of factors related to this scaling system were examined for their influence on vehicle performance metrics, including off-design turbojet performance, available fuel volume, and predicted empty weights. GOJETT was found to be feasible (capable of completing a full supersonic mission) at a wide range of sizes, while MUFASA required an increase from the existing vehicle size to be feasible. The M2011 did not have any feasible sizes under the system used. The smallest feasible SSUAV was found to have a takeoff mass of 13.41kg.

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)0.003
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.009
Threshold uncertainty score0.031

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.000
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0090.002

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 head0.147
GPT teacher head0.410
Teacher spread0.262 · 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 designTheoretical or conceptual
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

Citations1
Published2021
Admission routes1
Has abstractyes

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Same venueOpen MINDSame topicRocket and propulsion systems researchFrench-language works237,207