← Class ReferenceReferência de Classes
exported equivalent COPI_0000354
Spacer
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000354
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A spacer is a material artifact that has the function of maintaining spatial separation or distance between physical objects or fluids.
PT-BR
Um espaçador é um artefato material que tem a função de manter separação espacial ou distância entre objetos físicos ou fluidos.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every spacer is a material artifact that bears a spacing function
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (Spacer(x) ↔ MaterialArtifact(x) ∧ ∃f (SpacingFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: SpacingFunction]∀f (SpacingFunction(f) → ∀p (realizedIn(f,p) → SpacingProcess(p)) ∧ ∃p (SpacingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((Spacer(x) ∧ SpacingFunction(f) ∧ bearerOf(x,f)) → ∃m (PhysicalObject(m) ∧ participatesIn(m,f)) ∧ ∃e (PhysicalObject(e) ∧ participatesIn(e,f)) ∧ processType(f,Containment)) — 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: Spacer <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 :SpacingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :SpacingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :SpacingProcess ] ; rdfs:label "spacing function"@en ; rdfs:label "função de espaçamento"@pt-br . ### Process type :SpacingProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "spacing process"@en ; rdfs:label "processo de espaçamento"@pt-br . :SpacingProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PhysicalObject ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PhysicalObject ] . ### Equipment universal: Spacer :Spacer rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:MaterialArtifact [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :SpacingFunction ] ) ] ; rdfs:label "spacer"@en ; rdfs:label "espaçador"@pt-br ; iof-av:naturalLanguageDefinition "A spacer is a material artifact that has the function of maintaining spatial separation or distance between physical objects or fluids."@en ; skos:definition "A spacer is a material artifact that has the function of maintaining spatial separation or distance between physical objects or fluids."@en ; iof-av:naturalLanguageDefinition "Um espaçador é um artefato material que tem a função de manter separação espacial ou distância entre objetos físicos ou fluidos."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every spacer is a material artifact that bears a spacing function"@en ; iof-av:firstOrderLogicAxiom "∀x(Spacer(x) ↔ MaterialArtifact(x) ∧ ∃f(SpacingFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: Spacer and Valve [] rdf:type owl:AllDisjointClasses ; owl:members ( :Spacer :Valve ) . # Disjointness: Spacer and Pump [] rdf:type owl:AllDisjointClasses ; owl:members ( :Spacer :Pump ) . # Disjointness: Spacer and Compressor [] rdf:type owl:AllDisjointClasses ; owl:members ( :Spacer :Compressor ) . # Disjointness: Spacer and HeatExchanger [] rdf:type owl:AllDisjointClasses ; owl:members ( :Spacer :HeatExchanger ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
SpacingFunction ⊑ DesignedFunction
Realized in
SpacingProcess ⊑ PlannedProcess
The identity-giving function is maintaining spatial separation or distance between objects/fluids. All definitions converge on this spacing capability as the essential characteristic.
2 Genus DeterminationDeterminação do Gênero
MaterialArtifactbfo:Object (BFO_0000030)
No appropriate domain-specific superclass exists in the parent candidates. Spacers are causally unified artifacts designed to realize a spacing function, making MaterialArtifact the most appropriate genus. They are typically single maintainable units rather than assemblies with removable subcomponents.
3 Differentia SpecificaDiferença Específica
∃bearerOf.SpacingFunction

A spacer is distinguished by its function to maintain spatial separation or distance between physical objects or fluids.

The SpacingFunction is the minimal differentia that distinguishes spacers from all other MaterialArtifacts. This covers both physical spacing (maintaining distance) and fluid separation applications.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

Spacers are typically simple artifacts without universal mandatory subcomponents. Part requirements vary significantly by subtype (shaft spacers, pipe flange spacers, coupling spacers each have different structural requirements).
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PhysicalObject', 'count': '2+', 'constraints': 'objects requiring spatial separation'}
OutputsSaídas
{'type': 'PhysicalObject', 'count': '2+', 'constraints': 'same objects maintained at specified distance'}
TransformationTransformação
spatial relationship maintenance - no material transformation
Spacers maintain spatial relationships between multiple objects without transforming the objects themselves. For fluid spacer applications, they separate incompatible fluids during operations.
Disjoint WithDisjunto com
Valve Pump Compressor HeatExchanger
C4: Valve, Pump, Compressor, HeatExchanger. These equipment types have incompatible process signatures - flow control, pumping, compression, and heat transfer are functionally incompatible with spatial spacing/separation
MetadataMetadados
COPI IDCOPI IDCOPI_0000354
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000354
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-15
UpdatedAtualizado2026-06-26
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroMaterialArtifact
Root classClasse raizMaterialArtifact
Axiom modeModoequivalent
FunctionFunçãoSpacingFunction
ProcessProcessoSpacingProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 4 sources
ISO 15926-4 SPACER
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 spacer
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.
SLB Glossary spacer
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.
ONEPETRO_GLOSSARY Spacer
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.