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exported equivalent COPI_0000208
Agitator
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000208
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
An agitator is a mixer that stirs or shakes fluids by reaction force from moving vanes.
PT-BR
Um agitador é um misturador que mexe ou agita fluidos por força de reação de palhetas móveis.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every agitator is a mixer that has the function to agitate fluids and has moving vanes as component parts at all times.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (Agitator(x) ↔ Mixer(x) ∧ ∃f (AgitationFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.AgitationFunction ⊓ ∃hasComponentPartAtAllTimes.MovingVane) — Steps 1–3: genus + identity-giving function [Function axiom: AgitationFunction]∀f (AgitationFunction(f) → ∀p (realizedIn(f,p) → AgitationProcess(p)) ∧ ∃p (AgitationProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Necessary part: MovingVane]∀x (Agitator(x) → ∃p (MovingVane(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((Agitator(x) ∧ AgitationFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,Mixing)) — 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: Agitator <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 :AgitationFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :AgitationProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :AgitationProcess ] ; rdfs:label "agitation function"@en ; rdfs:label "função de agitação"@pt-br . ### Process type :AgitationProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "agitation process"@en ; rdfs:label "processo de agitação"@pt-br . :AgitationProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] . ### Equipment universal: Agitator :Agitator rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Mixer [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :AgitationFunction ] [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :MovingVane ] ) ] ; rdfs:label "agitator"@en ; rdfs:label "agitador"@pt-br ; iof-av:naturalLanguageDefinition "An agitator is a mixer that stirs or shakes fluids by reaction force from moving vanes."@en ; skos:definition "An agitator is a mixer that stirs or shakes fluids by reaction force from moving vanes."@en ; iof-av:naturalLanguageDefinition "Um agitador é um misturador que mexe ou agita fluidos por força de reação de palhetas móveis."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every agitator is a mixer that has the function to agitate fluids and has moving vanes as component parts at all times."@en ; iof-av:firstOrderLogicAxiom "∀x(Agitator(x) ↔ Mixer(x) ∧ ∃f(AgitationFunction(f) ∧ bearerOf(x,f)) ∧ ∃v(MovingVane(v) ∧ hasComponentPartAtAllTimes(x,v)))"@en ; :MovingVane rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "palheta móvel"@pt-br ; rdfs:label "moving vane"@en . # Disjointness: Agitator and Centrifuge [] rdf:type owl:AllDisjointClasses ; owl:members ( :Agitator :Centrifuge ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
AgitationFunction ⊑ DesignedFunction
Realized in
AgitationProcess ⊑ PlannedProcess
The identity-giving function is to stir or shake fluids through reaction force from moving vanes, which is a specific type of mixing operation distinct from static mixing or other mixing mechanisms.
2 Genus DeterminationDeterminação do Gênero
mixerbfo:Object (BFO_0000030)
The ISO 15926 definition explicitly states agitator is a 'DYNAMIC MIXER'. The already-enriched 'mixer' class (function: MixingFunction, genus: Assembly) is the most specific appropriate superclass. All parent candidates considered: DYNAMIC MIXER (not yet enriched), mixer (enriched), ProcessEquipment (too broad).
3 Differentia SpecificaDiferença Específica
∃bearerOf.AgitationFunction ⊓ ∃hasComponentPartAtAllTimes.MovingVane

An agitator is distinguished from other mixers by having moving vanes that create agitational motion through reaction force.

The differentia captures the specific agitation function (a subtype of mixing) and the characteristic moving vanes mechanism that distinguishes agitators from other dynamic mixers.
4 Necessary PartsPartes Necessárias
Part classParentRelation
MovingVaneMaterialArtifacthasComponentPartAtAllTimes
These parts are essential for any agitator to perform its function - the vanes create the mixing action, the shaft transmits rotation, and the drive provides the motive power.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'to be agitated, typically in a tank or vessel'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'same fluid with enhanced mixing, homogenization, or suspension'}
TransformationTransformação
mechanical energy transfer to create fluid motion and mixing through vane-induced agitation
Agitators transform mechanical rotational energy into fluid mixing energy, creating circulation patterns and preventing stratification or settling in the contained fluid.
Disjoint WithDisjunto com
Centrifuge
C4: Centrifuge. Static mixers have no moving parts (incompatible with moving vane requirement), centrifuges use centrifugal force rather than vane agitation for separation/mixing
MetadataMetadados
COPI IDCOPI IDCOPI_0000208
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000208
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneromixer
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoAgitationFunction
ProcessProcessoAgitationProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 AGITATOR
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 agitator
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.
DEXPI Agitator
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.