exported necessary COPI_0000231
Compressor Casing
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000231
Generated onGerado em 2026-05-04
Natural Language DefinitionDefinição em Linguagem Natural
EN
A Casing that is intended for housing compressor internals including the shaft with impellers and other compressor-specific mechanical components.
PT-BR
Um Invólucro que é destinado a abrigar componentes internos do compressor, incluindo o eixo com impulsores e outros componentes mecânicos específicos do compressor.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
CompressorCasing ⊑ Casing ⊓ ∃intendedForUseWith.Compressor
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (CompressorCasing(x) → Casing(x) ∧ ∃f (EnclosureFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: EnclosureFunction]∀f (EnclosureFunction(f) → ∀p (realizedIn(f,p) → EnclosureProcess(p)) ∧ ∃p (EnclosureProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (CompressorCasing(x) → ∃intendedForUseWith.Compressor) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((CompressorCasing(x) ∧ EnclosureFunction(f) ∧ bearerOf(x,f)) → ∃m (CompressorInternals(m) ∧ participatesIn(m,f)) ∧ ∃e (CompressorInternals(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: CompressorCasing <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 :EnclosureFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :EnclosureProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :EnclosureProcess ] ; rdfs:label "enclosure function"@en ; rdfs:label "função de proteção e invólucro"@pt-br ; iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in an EnclosureProcess and that consists in providing a structural boundary that houses and protects internal mechanical components from the environment while maintaining structural integrity."@en ; skos:definition "A DesignedFunction that is realized in an EnclosureProcess and that consists in providing a structural boundary that houses and protects internal mechanical components from the environment while maintaining structural integrity."@en . ### Process type :EnclosureProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "enclosure process"@en ; rdfs:label "processo de proteção e invólucro"@pt-br ; iof-av:naturalLanguageDefinition "A PlannedProcess in which a structural housing provides containment and protection for mechanical components, creating a defined boundary between internal mechanisms and the external environment."@en ; skos:definition "A PlannedProcess in which a structural housing provides containment and protection for mechanical components, creating a defined boundary between internal mechanisms and the external environment."@en . :EnclosureProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :CompressorInternals ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :CompressorInternals ] . ### Equipment universal: CompressorCasing :CompressorCasing rdf:type owl:Class ; rdfs:subClassOf :Casing ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :EnclosureFunction ] ; rdfs:label "compressor casing"@en ; rdfs:label "Invólucro"@pt-br ; iof-av:naturalLanguageDefinition "A Casing that is intended for housing compressor internals including the shaft with impellers and other compressor-specific mechanical components."@en ; skos:definition "A Casing that is intended for housing compressor internals including the shaft with impellers and other compressor-specific mechanical components."@en ; iof-av:naturalLanguageDefinition "Um Invólucro que é destinado a abrigar componentes internos do compressor, incluindo o eixo com impulsores e outros componentes mecânicos específicos do compressor."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "CompressorCasing ⊑ Casing ⊓ ∃intendedForUseWith.Compressor"@en ; iof-av:firstOrderLogicAxiom "∀x (CompressorCasing(x) → (Casing(x) ∧ ∃y (Compressor(y) ∧ intendedForUseWith(x,y))))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive type based on structural configuration. Under OWA, sufficient conditions for compressor-specific casing identity could lead to false positives where any enclosure intended for compressors might be classified as a standard compressor casing, including specialized or hybrid enclosures that warrant distinct classification."@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
EnclosureFunction ⊑ DesignedFunction
Realized in
EnclosureProcess ⊑ PlannedProcess
A compressor casing shares the same identity-giving function as other casings - it provides enclosure. The definition shows it is 'the typical enclosure for compressors' which indicates its identity is structural (housing shaft and impellers) rather than functionally distinct from other enclosures.
2 Genus DeterminationDeterminação do Gênero
Casingbfo:Object (BFO_0000030)
The ISO 15926 definition explicitly states 'A COMPRESSOR CASING is a CASING', making Casing the direct genus. Casing is already enriched in our ontology with EnclosureFunction and Assembly as its BFO root. This follows the genus proximum principle of using the most specific appropriate superclass.
3 Differentia SpecificaDiferença Específica
∃intendedForUseWith.Compressor

Intended specifically for housing compressor internals including shaft with impellers and other compressor-specific components.

The differentia captures that this casing is specifically designed for compressor applications. The definition emphasizes 'housing the shaft with impeller(s) and other compressor internals' which distinguishes it from other casing types by its intended mechanical context.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

The source definition does not specify particular structural parts that are universal to all compressor casings. While it mentions that the casing houses 'shaft with impeller(s) and other compressor internals', these are the contents of the casing, not parts of the casing itself. No component terms are provided in the known component terms list, and the definition does not detail the casing's own structural components.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'CompressorInternals', 'count': 1, 'constraints': 'shaft with impellers and other internal components requiring enclosure'}
OutputsSaídas
{'type': 'CompressorInternals', 'count': 1, 'constraints': 'housed and protected internal components'}
TransformationTransformação
structural containment and protection of compressor mechanical internals
The signature reflects the casing's role in passively containing and protecting compressor internals. The transformation is purely structural containment without altering the functional state of the internals.
MetadataMetadados
COPI IDCOPI IDCOPI_0000231
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000231
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-05-04
UpdatedAtualizado2026-06-26
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13