exported
equivalent
motor
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Motor
Generated on 2026-04-13
Natural Language Definition
EN
A motor is an assembly that bears a mechanical energy generation function to convert electrical, chemical, pneumatic, or hydraulic energy into rotational mechanical energy.
PT-BR
Um motor é um conjunto que possui uma função de geração de energia mecânica para converter energia elétrica, química, pneumática ou hidráulica em energia mecânica rotacional.
Formal Axioms
Semi-formal (Aristotelian)
Every motor is an assembly that has the function of generating mechanical energy and has as output rotational kinetic energy.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(Motor(x) ↔ Assembly(x) ∧ ∃f(MechanicalEnergyGenerationFunction(f) ∧ bearerOf(x,f)) ∧ ∃e(RotationalKineticEnergy(e) ∧ hasOutput(x,e)))
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: Motor
<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" ;
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 "2026-10-07"^^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
:COPI_0000574 rdf:type owl:Class ; # MechanicalEnergyGenerationFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000575 # MechanicalEnergyGenerationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000575 # MechanicalEnergyGenerationProcess
] ;
rdfs:label "mechanical energy generation function"@en ;
rdfs:label "função de geração de energia mecânica"@pt-br .
### Process type
:COPI_0000575 rdf:type owl:Class ; # MechanicalEnergyGenerationProcess
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "mechanical energy generation process"@en ;
rdfs:label "processo de geração de energia mecânica"@pt-br .
### Equipment universal: Motor
:COPI_0000315 rdf:type owl:Class ; # Motor
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
iof-core:Assembly
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000574 # MechanicalEnergyGenerationFunction
]
)
] ;
rdfs:label "motor"@en ;
rdfs:label "motor"@pt-br ;
iof-av:naturalLanguageDefinition "A motor is an assembly that bears a mechanical energy generation function to convert electrical, chemical, pneumatic, or hydraulic energy into rotational mechanical energy."@en ;
skos:definition "A motor is an assembly that bears a mechanical energy generation function to convert electrical, chemical, pneumatic, or hydraulic energy into rotational mechanical energy."@en ;
iof-av:naturalLanguageDefinition "Um motor é um conjunto que possui uma função de geração de energia mecânica para converter energia elétrica, química, pneumática ou hidráulica em energia mecânica rotacional."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every motor is an assembly that has the function of generating mechanical energy and has as output rotational kinetic energy."@en ;
iof-av:firstOrderLogicAxiom "∀x(Motor(x) ↔ Assembly(x) ∧ ∃f(MechanicalEnergyGenerationFunction(f) ∧ bearerOf(x,f)) ∧ ∃e(RotationalKineticEnergy(e) ∧ hasOutput(x,e)))"@en ;
skos:definition "[ISO 15926-4] A <MOTOR> is an <ARTEFACT> and a <DRIVER(function)> that is powered by electricity or internal combustion"@en ;
skos:definition "[CFIHOS] A device that generates rotational kinetic energy."@en ;
skos:definition "[DEXPI] A driver that is powered by electricity or internal combustion (from ``_)."@en .
# Disjointness: Motor and Turbine
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000315 :COPI_0000366 ) . # Motor, Turbine
Axiomatization Decision Log
1
Identity-Giving Function
Function class
MechanicalEnergyGenerationFunction
⊑ DesignedFunction
Realized in
MechanicalEnergyGenerationProcess
⊑ PlannedProcess
Motors are fundamentally defined by their designed function to convert various forms of energy (electrical, chemical combustion, pneumatic, hydraulic) into mechanical rotational energy. This energy conversion function is what distinguishes motors from other equipment types and is consistent across all motor variants.
2
Genus Determination
Assembly
bfo:Object (BFO_0000030)
Causally unified material artefact composed of physically connected,
separable MaterialComponent parts. Satisfies
Assembly ⊑ MaterialArtifact ⊑ bfo:Object.
Motor is a fundamental equipment category that does not have a more specific superclass in the current ontology. While the source hierarchies suggest 'driver' or 'DRIVER(function)', these are not established in our ontology. Motors are complex mechanical assemblies with multiple integrated components (stator, rotor, housing, bearings) that form a single causally unified object designed for energy conversion. Assembly is the appropriate BFO root as motors have physically connected, removable subcomponents but maintain causal unity.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are universal across all motor types regardless of power source or specific mechanism. More specific parts like stators, rotors, pistons, or turbine wheels are subtype-specific.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
—
Outputs (O)
—
Transformation (T)
energy conversion from input form to mechanical rotational energy
Motors are energy conversion devices that take various energy inputs and produce mechanical rotational output. The specific input type varies by motor subtype but the output is consistently rotational mechanical energy.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
Turbine
C2: Turbine. Motors convert other energy forms to mechanical energy, while generators convert mechanical to electrical (opposite direction), and turbines extract energy from fluid flow rather than consuming other energy sources for conversion
Cross-Standard Observations
All three sources emphasize the energy conversion aspect of motors. ISO15926 and DEXPI specifically mention electricity and internal combustion as power sources, while CFIHOS focuses on the rotational kinetic energy output. The definitions are consistent in treating motor as a fundamental driver category.
Source Definitions
3 sources
ISO 15926-4
MOTOR ↗
Definition text withheld (copyrighted standard) — follow the source link above.
CFIHOS
motor
Definition text withheld (copyrighted standard) — follow the source link above.
DEXPI
Motor ↗
Definition text withheld (copyrighted standard) — follow the source link above.
Metadata
| Ontology | COPI |
| Research group | INF-UFRGS-Ontologies |
| Funding | CNPq INF-UFRGS-ENERGIA |
| Project | OntoKG / Petrobras |
| ID | #85 |
| Cluster | motor |
| Status | exported |
| Axiom mode | equivalent |
| Created | 2026-04-13 |
| Updated | 2026-09-08 |
ISA 5.1-2022 P&ID Symbol
wikimedia/motor_operated_valve.svg
