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exported necessary COPI_0000306
Input Shaft
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000306
Generated onGerado em 2026-05-04
Natural Language DefinitionDefinição em Linguagem Natural
EN
An input shaft is a shaft that serves as the entrance point for mechanical energy from an external energy source in a power transmission system.
PT-BR
Um eixo de entrada é um eixo que serve como ponto de entrada para energia mecânica de uma fonte de energia externa em um sistema de transmissão de potência.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
An InputShaft is a Shaft that participates in mechanical energy reception and is connected to an external energy source.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (InputShaft(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 (InputShaft(x) → ∃participatesIn.MechanicalEnergyReceptionProcess ⊓ ∃connectedTo.ExternalEnergySource) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((InputShaft(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: InputShaft <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 transmitting mechanical energy from an external energy source through rotational motion to downstream mechanical components."@en ; skos:definition "A DesignedFunction that is realized in a PowerTransmissionProcess and that consists in transmitting mechanical energy from an external energy source through rotational motion to downstream mechanical components."@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 an external energy source through a rotating shaft to downstream mechanical components, enabling power transfer within a mechanical system."@en ; skos:definition "A PlannedProcess in which mechanical energy is transmitted from an external energy source through a rotating shaft to downstream mechanical components, enabling power transfer within a mechanical system."@en . ### Equipment universal: InputShaft :InputShaft 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 "input shaft"@en ; rdfs:label "eixo de entrada"@pt-br ; iof-av:naturalLanguageDefinition "An input shaft is a shaft that serves as the entrance point for mechanical energy from an external energy source in a power transmission system."@en ; skos:definition "An input shaft is a shaft that serves as the entrance point for mechanical energy from an external energy source in a power transmission system."@en ; iof-av:naturalLanguageDefinition "Um eixo de entrada é um eixo que serve como ponto de entrada para energia mecânica de uma fonte de energia externa em um sistema de transmissão de potência."@pt-br ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive type based on physical configuration as energy entrance point. Under OWA, defining sufficient conditions could lead to false positives where any shaft receiving external energy input would be classified as a standard input shaft, even specialized or hybrid configurations that should remain in different maintenance categories."@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
The generic function of a shaft is power transmission - converting and transmitting mechanical energy through rotation. While this input shaft has the specific role of being the entrance point, it shares the fundamental power transmission function with all shafts.
2 Genus DeterminationDeterminação do Gênero
Shaftbfo:Object (BFO_0000030)
The definition explicitly states this is a subtype of SHAFT. While Shaft is not yet enriched in our ontology, it is the most specific appropriate superclass. Shaft would ultimately fall under Assembly as it is a mechanical component that transmits power through connected parts.
3 Differentia SpecificaDiferença Específica
∃participatesIn.MechanicalEnergyReceptionProcess ⊓ ∃connectedTo.ExternalEnergySource

The shaft that serves as the entrance point for mechanical energy from an external energy source in a power transmission system.

The differentia captures the specific role as energy entrance point and connection to external energy source, which distinguishes it from other shaft types that may transmit power internally or deliver power as outputs.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

No component terms are available in the known component terms list, and the source definition does not specify internal parts beyond the basic shaft structure inherited from the genus. The specific internal components of an input shaft would vary by application and implementation.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
—
OutputsSaídas
—
TransformationTransformação
mechanical energy received from external source and transmitted through rotation to downstream mechanical components
The signature reflects the shaft's role as the mechanical energy entrance point - receiving rotational power from an external source and transmitting it onwards. This grounds disjointness from other equipment that processes different energy types or performs different transformations.
MetadataMetadados
COPI IDCOPI IDCOPI_0000306
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000306
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-05-04
UpdatedAtualizado2026-07-12
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroShaft
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoPowerTransmissionFunction
ProcessProcessoPowerTransmissionProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 1 source
ISO 15926-4 INPUT 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.