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exported necessary COPI_0000317
Output Shaft
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000317
Generated onGerado em 2026-05-04
Natural Language DefinitionDefinição em Linguagem Natural
EN
A Shaft that participates in mechanical energy output processes, serving as the exit point for mechanical energy transmission from a prime mover to external energy consuming equipment.
PT-BR
Um Eixo que participa em processos de saída de energia mecânica, servindo como ponto de saída para transmissão de energia mecânica de um motor primário para equipamentos consumidores de energia externos.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every output shaft is a shaft that participates in at least one mechanical energy output process and bears a power transmission function.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (OutputShaft(x) → Shaft(x) ∧ ∃f (PowerTransmissionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: PowerTransmissionFunction]∀f (PowerTransmissionFunction(f) → ∀p (realizedIn(f,p) → PowerTransmissionProcess(p)) ∧ ∃p (PowerTransmissionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (OutputShaft(x) → ∃participatesIn.MechanicalEnergyOutputProcess) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((OutputShaft(x) ∧ PowerTransmissionFunction(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: OutputShaft <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 :PowerTransmissionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :PowerTransmissionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :PowerTransmissionProcess ] ; rdfs:label "power transmission function"@en ; rdfs:label "função de transmissão de potência"@pt-br ; iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in a PowerTransmissionProcess and that consists in the capacity to transmit mechanical energy from one mechanical component to another through rotational or linear motion."@en ; skos:definition "A DesignedFunction that is realized in a PowerTransmissionProcess and that consists in the capacity to transmit mechanical energy from one mechanical component to another through rotational or linear motion."@en . ### Process type :PowerTransmissionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "power transmission process"@en ; rdfs:label "processo de transmissão de potência"@pt-br ; iof-av:naturalLanguageDefinition "A PlannedProcess in which mechanical energy is transmitted from a driving component to a driven component through the rotation or linear motion of a shaft, enabling the transfer of torque and rotational speed."@en ; skos:definition "A PlannedProcess in which mechanical energy is transmitted from a driving component to a driven component through the rotation or linear motion of a shaft, enabling the transfer of torque and rotational speed."@en . ### Equipment universal: OutputShaft :OutputShaft rdf:type owl:Class ; rdfs:subClassOf :Shaft ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :PowerTransmissionFunction ] ; rdfs:label "output shaft"@en ; rdfs:label "eixo de saída"@pt-br ; iof-av:naturalLanguageDefinition "A Shaft that participates in mechanical energy output processes, serving as the exit point for mechanical energy transmission from a prime mover to external energy consuming equipment."@en ; skos:definition "A Shaft that participates in mechanical energy output processes, serving as the exit point for mechanical energy transmission from a prime mover to external energy consuming equipment."@en ; iof-av:naturalLanguageDefinition "Um Eixo que participa em processos de saída de energia mecânica, servindo como ponto de saída para transmissão de energia mecânica de um motor primário para equipamentos consumidores de energia externos."@pt-br ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive type based on positional role within mechanical systems. Under OWA, sufficient conditions would be difficult to specify without risk of misclassifying intermediate shafts or complex multi-shaft arrangements that happen to have output characteristics."@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
PowerTransmissionFunction ⊑ DesignedFunction
Realized in
PowerTransmissionProcess ⊑ PlannedProcess
While PowerTransmissionFunction already exists in the ontology (gearbox uses it), output shafts share this same fundamental function - they transmit mechanical power. The differentia for output shaft is not functional but positional/directional (being the exit point rather than having a unique transmission mechanism).
2 Genus DeterminationDeterminação do Gênero
Shaftbfo:Object (BFO_0000030)
The ISO 15926 definition explicitly states 'An <OUTPUT SHAFT> is a <SHAFT>' making Shaft the direct genus. No parent_candidates were provided, but Shaft is the obvious superclass. A shaft is a single mechanical component (not an assembly of removable parts), making it a MaterialArtifact rather than an Assembly.
3 Differentia SpecificaDiferença Específica
∃participatesIn.MechanicalEnergyOutputProcess

An output shaft is distinguished from other shafts by participating in mechanical energy output processes, serving as the exit point for mechanical energy from a prime mover to drive external energy consumers.

The key differentia is the directional role as energy exit point. The ISO definition emphasizes 'exit of mechanical energy and driver of an external energy consumer' - this is a process participation role, not a structural feature.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

No component terms were provided in the Known Component Terms list, and the ISO definition does not specify internal parts. Shafts can have various features (keyways, splines, bearings seats) but these vary by application and are not universal to all output shafts.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
—
OutputsSaídas
—
TransformationTransformação
mechanical energy transmitted from internal system components to external driven equipment
Output shafts receive mechanical power from internal components (engines, motors, gearboxes) and transmit it to external loads. The transformation is pure transmission without modification of the energy form.
MetadataMetadados
COPI IDCOPI IDCOPI_0000317
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000317
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-05-04
UpdatedAtualizado2026-07-12
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroShaft
Root classClasse raizMaterialArtifact
Axiom modeModonecessary
FunctionFunçãoPowerTransmissionFunction
ProcessProcessoPowerTransmissionProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 1 source
ISO 15926-4 OUTPUT SHAFT
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.