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exported necessary COPI_0000298
Hydraulic Actuator
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000298
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A hydraulic actuator is an actuator that converts hydraulic fluid pressure into mechanical motion through hydraulic power transmission.
PT-BR
Um atuador hidráulico é um atuador que converte pressão de fluido hidráulico em movimento mecânico através de transmissão de potência hidráulica.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every hydraulic actuator is an actuator that has hydraulic fluid portion as input and participates in hydraulic to mechanical energy conversion process.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (HydraulicActuator(x) → Actuator(x) ∧ ∃f (ActuationFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: ActuationFunction]∀f (ActuationFunction(f) → ∀p (realizedIn(f,p) → ActuationProcess(p)) ∧ ∃p (ActuationProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (HydraulicActuator(x) → ∃participatesIn.HydraulicToMechanicalEnergyConversionProcess) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((HydraulicActuator(x) ∧ ActuationFunction(f) ∧ bearerOf(x,f)) → ∃m1 (HydraulicFluidPortion(m1) ∧ participatesIn(m1,f)) ∧ ∃m2 (ControlSignal(m2) ∧ participatesIn(m2,f)) ∧ ∃e (HydraulicFluidPortion(e) ∧ participatesIn(e,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: HydraulicActuator <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 :ActuationFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :ActuationProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :ActuationProcess ] ; rdfs:label "actuation function"@en ; rdfs:label "função de atuação"@pt-br . ### Process type :ActuationProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "actuation process"@en ; rdfs:label "processo de atuação"@pt-br . :ActuationProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :HydraulicFluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :ControlSignal ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :HydraulicFluidPortion ] . ### Equipment universal: HydraulicActuator :HydraulicActuator rdf:type owl:Class ; rdfs:subClassOf :Actuator ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :ActuationFunction ] ; rdfs:label "hydraulic actuator"@en ; rdfs:label "atuador hidráulico"@pt-br ; iof-av:naturalLanguageDefinition "A hydraulic actuator is an actuator that converts hydraulic fluid pressure into mechanical motion through hydraulic power transmission."@en ; skos:definition "A hydraulic actuator is an actuator that converts hydraulic fluid pressure into mechanical motion through hydraulic power transmission."@en ; iof-av:naturalLanguageDefinition "Um atuador hidráulico é um atuador que converte pressão de fluido hidráulico em movimento mecânico através de transmissão de potência hidráulica."@pt-br ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive classification based on hydraulic power source. Under Open World Assumption, asserting equivalence could incorrectly classify complex hydraulic-mechanical hybrid systems or specialized equipment containing hydraulic actuator components as standard hydraulic actuators."@en ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000384 ] ; # Disjointness: HydraulicActuator and ElectricActuator [] rdf:type owl:AllDisjointClasses ; owl:members ( :HydraulicActuator :ElectricActuator ) . # Disjointness: HydraulicActuator and PneumaticActuator [] rdf:type owl:AllDisjointClasses ; owl:members ( :HydraulicActuator :PneumaticActuator ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
ActuationFunction ⊑ DesignedFunction
Realized in
ActuationProcess ⊑ PlannedProcess
Reusing the identity-giving function from the already-enriched 'actuator' class. All actuators, regardless of power source, share the fundamental function of converting control signals into mechanical motion.
2 Genus DeterminationDeterminação do Gênero
actuatorbfo:Object (BFO_0000030)
The parent_candidates include 'actuator' which is already enriched in our ontology with ActuationFunction and Assembly genus. This is the most specific and appropriate superclass - hydraulic actuator is clearly a subtype of actuator differentiated by power source.
3 Differentia SpecificaDiferença Específica
∃participatesIn.HydraulicToMechanicalEnergyConversionProcess

Operates by converting hydraulic fluid pressure into mechanical motion through hydraulic power transmission.

The hydraulic power source is the key distinguishing feature. This requires hydraulic fluid input and participation in hydraulic-to-mechanical energy conversion, which are constructive characteristics not shared by other actuator types.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These parts are universal to hydraulic actuators regardless of specific configuration (linear/rotary) and are necessary for hydraulic operation.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'HydraulicFluidPortion', 'count': 1, 'constraints': 'pressurized, incompressible'}, {'type': 'ControlSignal', 'count': 1, 'constraints': 'actuator positioning command'}
OutputsSaídas
{'type': 'HydraulicFluidPortion', 'count': 1, 'constraints': 'return fluid, lower pressure'}
TransformationTransformação
hydraulic pressure energy converted to mechanical kinetic energy
Signature reflects the core hydraulic actuation process: pressurized hydraulic fluid input plus control signal produces mechanical motion output plus return fluid.
Disjoint WithDisjunto com
electric actuator pneumatic actuator
C1: electric actuator, pneumatic actuator. Different power source types (hydraulic fluid vs. electrical current vs. compressed air) represent incompatible energy conversion mechanisms and cannot be simultaneously instantiated by the same actuator.
MetadataMetadados
COPI IDCOPI IDCOPI_0000298
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000298
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-16
UpdatedAtualizado2026-07-12
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroactuator
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoActuationFunction
ProcessProcessoActuationProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 HYDRAULIC ACTUATOR
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.
CFIHOS hydraulic actuator
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.
POSC Caesar Hydraulic Actuator
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.