Journal article Open Access
Yaroslav Dvirnyk; Dmytro Pavlenko; Radoslaw Przysowa
<?xml version='1.0' encoding='utf-8'?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:adms="http://www.w3.org/ns/adms#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dct="http://purl.org/dc/terms/" xmlns:dctype="http://purl.org/dc/dcmitype/" xmlns:dcat="http://www.w3.org/ns/dcat#" xmlns:duv="http://www.w3.org/ns/duv#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:frapo="http://purl.org/cerif/frapo/" xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#" xmlns:gsp="http://www.opengis.net/ont/geosparql#" xmlns:locn="http://www.w3.org/ns/locn#" xmlns:org="http://www.w3.org/ns/org#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:prov="http://www.w3.org/ns/prov#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:schema="http://schema.org/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:vcard="http://www.w3.org/2006/vcard/ns#" xmlns:wdrs="http://www.w3.org/2007/05/powder-s#"> <rdf:Description rdf:about="https://zenodo.org/record/3568747"> <rdf:type rdf:resource="http://www.w3.org/ns/dcat#Dataset"/> <dct:type rdf:resource="http://purl.org/dc/dcmitype/Text"/> <dct:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">https://zenodo.org/record/3568747</dct:identifier> <foaf:page rdf:resource="https://zenodo.org/record/3568747"/> <dct:creator> <rdf:Description> <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/> <foaf:name>Yaroslav Dvirnyk</foaf:name> </rdf:Description> </dct:creator> <dct:creator> <rdf:Description> <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/> <foaf:name>Dmytro Pavlenko</foaf:name> </rdf:Description> </dct:creator> <dct:creator> <rdf:Description> <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Agent"/> <foaf:name>Radoslaw Przysowa</foaf:name> </rdf:Description> </dct:creator> <dct:title>Determination of Serviceability Limits of a Turboshaft Engine by the Criterion of Blade Natural Frequency and Stall Margin</dct:title> <dct:publisher> <foaf:Agent> <foaf:name>Zenodo</foaf:name> </foaf:Agent> </dct:publisher> <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#gYear">2019</dct:issued> <dcat:keyword>gas-turbine performance</dcat:keyword> <dcat:keyword>turboshaft</dcat:keyword> <dcat:keyword>axial compressor</dcat:keyword> <dcat:keyword>blade</dcat:keyword> <dcat:keyword>FEM</dcat:keyword> <dcat:keyword>CFD</dcat:keyword> <dcat:keyword>erosion</dcat:keyword> <dcat:keyword>wear</dcat:keyword> <dcat:keyword>stall margin</dcat:keyword> <dcat:keyword>compressor surge</dcat:keyword> <dcat:keyword>brownout</dcat:keyword> <frapo:isFundedBy rdf:resource="info:eu-repo/grantAgreement/EC/H2020/724034/"/> <schema:funder> <foaf:Organization> <dct:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">10.13039/501100000780</dct:identifier> <foaf:name>European Commission</foaf:name> </foaf:Organization> </schema:funder> <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2019-12-09</dct:issued> <dct:language rdf:resource="http://publications.europa.eu/resource/authority/language/ENG"/> <owl:sameAs rdf:resource="https://zenodo.org/record/3568747"/> <adms:identifier> <adms:Identifier> <skos:notation rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">https://zenodo.org/record/3568747</skos:notation> <adms:schemeAgency>url</adms:schemeAgency> </adms:Identifier> </adms:identifier> <owl:sameAs rdf:resource="https://doi.org/10.3390/aerospace6120132"/> <dct:description><p>This paper analyzes the health and performance of the 12-stage axial compressor of the<br> TV3-117VM/VMA turboshaft operated in a desert environment. The results of the dimensional<br> control of 4800 worn blades are analyzed to model the wear process. Operational experience<br> and two-phase flow simulations are used to assess the effectiveness of an inlet particle separator.<br> Numerical modal analysis is performed to generate the Campbell diagram of the worn blades and<br> identify resonant blade vibrations which can lead to high cycle fatigue (HCF): mode 7 engine order 30<br> in the first stage and mode 8 engine order 60 in the fourth. It is also shown that the gradual loss of<br> the stall margin over time determines the serviceability limits of compressor blades. In particular,<br> the chord wear of sixth-stage blades as high as 6.19 mm results in a reduction of the stall margin<br> by 15&ndash;17% and a permanent stall at 770&ndash;790 flight hours. In addition, recommendations setting out<br> go/no-go criteria are made to maintenance and repair organizations.</p></dct:description> <dct:accessRights rdf:resource="http://publications.europa.eu/resource/authority/access-right/PUBLIC"/> <dct:accessRights> <dct:RightsStatement rdf:about="info:eu-repo/semantics/openAccess"> <rdfs:label>Open Access</rdfs:label> </dct:RightsStatement> </dct:accessRights> <dcat:distribution> <dcat:Distribution> <dct:license rdf:resource="https://creativecommons.org/licenses/by/4.0/legalcode"/> <dcat:accessURL rdf:resource="https://zenodo.org/record/3568747"/> </dcat:Distribution> </dcat:distribution> <dcat:distribution> <dcat:Distribution> <dcat:accessURL>https://doi.org/10.3390/aerospace6120132</dcat:accessURL> <dcat:byteSize>4493530</dcat:byteSize> <dcat:downloadURL>https://zenodo.org/record/3568747/files/aerospace-06-00132.pdf</dcat:downloadURL> <dcat:mediaType>application/pdf</dcat:mediaType> </dcat:Distribution> </dcat:distribution> </rdf:Description> <foaf:Project rdf:about="info:eu-repo/grantAgreement/EC/H2020/724034/"> <dct:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">724034</dct:identifier> <dct:title>Strategic and Targeted Support for Europe-Ukraine Collaboration in Aviation Research</dct:title> <frapo:isAwardedBy> <foaf:Organization> <dct:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">10.13039/501100000780</dct:identifier> <foaf:name>European Commission</foaf:name> </foaf:Organization> </frapo:isAwardedBy> </foaf:Project> </rdf:RDF>
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