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exported necessary COPI_0000342
Rotor
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000342
Generated onGerado em 2026-05-04
Natural Language DefinitionDefinição em Linguagem Natural
EN
An Assembly that participates in rotational motion and has a rotor shaft as an essential component, designed to transfer mechanical energy through rotational motion within a machine assembly.
PT-BR
Um Assembly que participa em movimento rotacional e tem um eixo do rotor como componente essencial, projetado para transferir energia mecânica através de movimento rotacional dentro de um conjunto de máquina.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every Rotor is an Assembly that participates in some RotationalMotionProcess and has some rotor shaft as component part at all times.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (Rotor(x) → Assembly(x) ∧ ∃f (RotationalEnergyTransferFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: RotationalEnergyTransferFunction]∀f (RotationalEnergyTransferFunction(f) → ∀p (realizedIn(f,p) → RotationalEnergyTransferProcess(p)) ∧ ∃p (RotationalEnergyTransferProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (Rotor(x) → ∃participatesIn.RotationalMotionProcess ⊓ ∃hasComponentPartAtAllTimes.RotorShaft) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Necessary part: ?]∀x (Rotor(x) → ∃p (?(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((Rotor(x) ∧ RotationalEnergyTransferFunction(f) ∧ bearerOf(x,f)) → processType(f,MechanicalPowerTransmission)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: Rotor <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-10-08"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :RotationalEnergyTransferFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :RotationalEnergyTransferProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :RotationalEnergyTransferProcess ] ; rdfs:label "rotational energy transfer function"@en ; rdfs:label "função de transferência de energia rotacional"@pt-br ; iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in a RotationalEnergyTransferProcess and that consists in the capacity to transfer mechanical energy through rotational motion within a machine assembly."@en ; skos:definition "A DesignedFunction that is realized in a RotationalEnergyTransferProcess and that consists in the capacity to transfer mechanical energy through rotational motion within a machine assembly."@en . ### Process type :RotationalEnergyTransferProcess rdf:type owl:Class ; rdfs:subClassOf :MomentumTransfer ; rdfs:label "rotational energy transfer process"@en ; rdfs:label "processo de transferência de energia rotacional"@pt-br ; iof-av:naturalLanguageDefinition "A PlannedProcess in which a rotor transfers mechanical energy through its rotational motion, enabling the operation of rotating machinery such as motors, compressors, pumps, and turbines."@en ; skos:definition "A PlannedProcess in which a rotor transfers mechanical energy through its rotational motion, enabling the operation of rotating machinery such as motors, compressors, pumps, and turbines."@en . :MomentumTransfer rdf:type owl:Class . ### Equipment universal: Rotor :Rotor rdf:type owl:Class ; rdfs:subClassOf iof-core:Assembly ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :RotationalEnergyTransferFunction ] ; rdfs:label "rotor"@en ; rdfs:label "rotor"@pt-br ; iof-av:naturalLanguageDefinition "An Assembly that participates in rotational motion and has a rotor shaft as an essential component, designed to transfer mechanical energy through rotational motion within a machine assembly."@en ; skos:definition "An Assembly that participates in rotational motion and has a rotor shaft as an essential component, designed to transfer mechanical energy through rotational motion within a machine assembly."@en ; iof-av:naturalLanguageDefinition "Um Assembly que participa em movimento rotacional e tem um eixo do rotor como componente essencial, projetado para transferir energia mecânica através de movimento rotacional dentro de um conjunto de máquina."@pt-br ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "As a constructive type defined by physical configuration (rotating portion with shaft), providing sufficient conditions under OWA could lead to overclassification. Complex assemblies containing rotating elements might be incorrectly classified as rotors rather than their proper categories (motors, compressors, etc.)."@en ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000059 ] ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
RotationalEnergyTransferFunction ⊑ DesignedFunction
Realized in
RotationalEnergyTransferProcess ⊑ MomentumTransfer
While rotors appear in diverse applications (motors, compressors, pumps), their universal identity-giving function is the transfer of mechanical energy through rotation. This distinguishes rotors from stationary machine components and enables the various specialized functions of different rotor types.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
A rotor is a machine component with physically connected parts (shaft, blades, windings, etc.) that functions as a causally unified whole. It is more specific than MaterialArtifact because rotors typically have removable subcomponents and require assembly. No domain-specific parent like 'MachineComponent' exists in the already-enriched classes, so Assembly is the most appropriate genus.
3 Differentia SpecificaDiferença Específica
∃participatesIn.RotationalMotionProcess ⊓ ∃hasComponentPartAtAllTimes.RotorShaft

A machine assembly that participates in rotational motion and has a rotor shaft as an essential component.

The defining characteristics of a rotor are (1) its participation in rotational motion as the rotating element and (2) the presence of a rotor shaft that serves as the central rotating axis. These conditions distinguish rotors from other machine components while being minimal and necessary.
4 Necessary PartsPartes Necessárias
Part classParentRelation
MaterialArtifacthasComponentPartAtAllTimes
The rotor shaft is the only universal component that all rotors must possess. Other components like blades, windings, or cages are specific to particular rotor types (turbine rotors, electrical rotors, cage rotors) and should be modeled at the subtype level.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
—
OutputsSaídas
—
TransformationTransformação
rotational mechanical energy transferred through rotating motion to enable machine operation
A rotor fundamentally transfers mechanical energy through rotation. It receives rotational energy from a driver (motor, engine) and transmits it to the machine's working elements (impeller, compressor stages, generator windings). This signature distinguishes rotors from non-rotating components and static assemblies.
MetadataMetadados
COPI IDCOPI IDCOPI_0000342
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000342
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-05-04
UpdatedAtualizado2026-09-08
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-10-08
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoRotationalEnergyTransferFunction
ProcessProcessoRotationalEnergyTransferProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 2 sources
ISO 15926-4 ROTOR
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
ONEPETRO_GLOSSARY Rotor
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
Provenance tiersCamadas de proveniência
primarystandardverbatimiso15926
A <ROTOR> is a <MACHINE COMPONENT> that is the rotating portion of a machine
secondarystandardverbatimonepetro_glossary
The rotating shaft in a PDM motor.

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