ISA 5.1 symbol
exported equivalent COPI_0000113
Electric Motor
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000113
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
An electric motor is an assembly that bears an electric-to-mechanical energy conversion function and has both a stator and rotor as essential components.
PT-BR
Um motor elétrico é um conjunto que possui uma função de conversão de energia elétrica para mecânica e tem tanto um estator quanto um rotor como componentes essenciais.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every electric motor is an assembly that bears an electric-to-mechanical conversion function and has component parts including a stator and rotor at all times.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (ElectricMotor(x) ↔ Assembly(x) ∧ ∃f (ElectricToMechanicalConversionFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.ElectricToMechanicalConversionFunction ⊓ ∃hasComponentPartAtAllTimes.Stator ⊓ ∃hasComponentPartAtAllTimes.Rotor) — Steps 1–3: genus + identity-giving function [Function axiom: ElectricToMechanicalConversionFunction]∀f (ElectricToMechanicalConversionFunction(f) → ∀p (realizedIn(f,p) → ElectricToMechanicalConversionProcess(p)) ∧ ∃p (ElectricToMechanicalConversionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((ElectricMotor(x) ∧ ElectricToMechanicalConversionFunction(f) ∧ bearerOf(x,f)) → ∃m (ElectricalEnergyPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (MechanicalEnergyPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,ElectricalPowerConversion)) — 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: ElectricMotor <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 "1.1.0-104-g4d16eff" ; 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 "2026-07-13"^^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 :ElectricToMechanicalConversionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :ElectricToMechanicalConversionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :ElectricToMechanicalConversionProcess ] ; rdfs:label "electric to mechanical conversion function"@en ; rdfs:label "função de conversão elétrico-mecânica"@pt-br . ### Process type :ElectricToMechanicalConversionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "electric to mechanical conversion process"@en ; rdfs:label "processo de conversão elétrico-mecânica"@pt-br . :ElectricToMechanicalConversionProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :ElectricalEnergyPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :MechanicalEnergyPortion ] . ### Equipment universal: ElectricMotor :ElectricMotor rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:Assembly [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :ElectricToMechanicalConversionFunction ] ) ] ; rdfs:label "electric motor"@en ; rdfs:label "motor elétrico"@pt-br ; iof-av:naturalLanguageDefinition "An electric motor is an assembly that bears an electric-to-mechanical energy conversion function and has both a stator and rotor as essential components."@en ; skos:definition "An electric motor is an assembly that bears an electric-to-mechanical energy conversion function and has both a stator and rotor as essential components."@en ; iof-av:naturalLanguageDefinition "Um motor elétrico é um conjunto que possui uma função de conversão de energia elétrica para mecânica e tem tanto um estator quanto um rotor como componentes essenciais."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every electric motor is an assembly that bears an electric-to-mechanical conversion function and has component parts including a stator and rotor at all times."@en ; iof-av:firstOrderLogicAxiom "ElectricMotor(x) ↔ Assembly(x) ∧ ∃f(ElectricToMechanicalConversionFunction(f) ∧ bearerOf(x,f)) ∧ ∃s(Stator(s) ∧ hasComponentPartAtAllTimes(x,s)) ∧ ∃r(Rotor(r) ∧ hasComponentPartAtAllTimes(x,r))"@en ; # Disjointness: ElectricMotor and Transformer [] rdf:type owl:AllDisjointClasses ; owl:members ( :ElectricMotor :Transformer ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
ElectricToMechanicalConversionFunction ⊑ DesignedFunction
Realized in
ElectricToMechanicalConversionProcess ⊑ PlannedProcess
The identity-giving function is converting electrical energy into mechanical energy. This is consistently mentioned across all three source definitions (ISO 15926, CFIHOS, POSC Caesar) as the core purpose that distinguishes electric motors from other equipment types.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
No specific 'Motor' or 'RotatingMachine' class is enriched in our ontology yet. Electric motors are complex assemblies with multiple physically connected parts (stator, rotor, bearings, housing, terminals) that are causally unified and maintained as a single unit. The parent candidates from source hierarchies (ELECTRIC ROTATING MACHINE, MOTOR) are not yet enriched, so we use Assembly as the most appropriate existing genus.
3 Differentia SpecificaDiferença Específica
∃bearerOf.ElectricToMechanicalConversionFunction ⊓ ∃hasComponentPartAtAllTimes.Stator ⊓ ∃hasComponentPartAtAllTimes.Rotor

Bears an electric-to-mechanical energy conversion function and has both a stator and rotor as essential components.

The ElectricToMechanicalConversionFunction is the primary differentiator from other assemblies. The stator-rotor pair is architecturally necessary for any electric motor (rotating or linear) and distinguishes motors from other electrical equipment like transformers or static converters.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These parts are architecturally necessary for any electric motor to function. Stator and rotor provide the electromagnetic conversion, housing provides structural integrity, and bearings enable rotation.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'ElectricalEnergyPortion', 'count': 1, 'constraints': 'AC or DC power supply'}
OutputsSaídas
{'type': 'MechanicalEnergyPortion', 'count': 1, 'constraints': 'rotational mechanical power'}
TransformationTransformação
electrical energy converted to rotational mechanical energy
Electric motors consume electrical energy and produce rotational mechanical energy. This signature distinguishes them from generators (opposite direction), pumps (fluid transformation), or compressors (gas compression).
Disjoint WithDisjunto com
Transformer
C?: Transformer [kind_ambiguous]. Electric motors convert electrical to mechanical energy, which is incompatible with generators (mechanical to electrical), transformers (electrical to electrical at different voltages), or other electrical converters that don't produce mechanical output.
MetadataMetadados
COPI IDCOPI IDCOPI_0000113
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000113
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-13
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13