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Utmattningsanalys av marin ångpanna: Sunrod CPDB12
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
2018 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Fatigue analysis of marine boiler : Sunrod CPDB12 (English)
Abstract [sv]

Problematik med utmattningsbrott är känt sedan början på 1800-talet och fenomenet har studerats sedan dess. Efter lång tids arbete har man hittat en metodik för att ta fram analytiska beräkningsmodeller samt säkra och noggranna livslängdsberäkningar för stålkonstruktioner. Syftet med detta arbete har varit att undersöka en marin ångpannas utmattningshållfasthet under loppet av dess ekonomiska livslängd. I den här studien har en analytisk beräkning gjorts på en marin ångpannas utmattningslivslängd med hjälp av DNV ́s regler för klassifikation av fartyg samt Europeiska tryckkärlsnormen. I studien har författarna tagit hänsyn till ångpannans tryckvariationer, temperaturvariationer samt den marina ångpannans yttre påverkan från fartygets rörelse i vattnet och de resulterande hävkrafterna. Detta för att med hög tillförlitlighet (konfidens) kunna värna om människoliv, natur och miljö, fysisk egendom (fartyg samt last), operativa tillgänglighet samt lagar och regler.

Abstract [en]

Problems with fractures due to fatigue have been known since the early 19th century, and the phenomenon has been studied since then. After long periods of work, a methodology has been found to develop analytical fatigue calculation models for steel structures. The purpose of this work has been to investigate the fatigue assessments of marine boilers during it ́s economic lifetime. In this study, an analytical calculation has been made of the marine boiler using DNV's ship classification rules and the European pressure vessel standard. In the study, the authors have taken into account the boilers pressure variations, temperature variations, and the marine boiler's external impact from the vessel's motion in the water and the resulting forces. In order to be able to protect human life, nature and the environment, physical property (ships and cargo), operational availability as well as laws and regulations, with high reliability (confidentiality).

Place, publisher, year, edition, pages
2018. , p. 31
Keywords [en]
Fatigue analysis, Marine boiler, Fatigue assessment
Keywords [sv]
Utmattningsanalys, Marin ångpanna, Nominella spänningsmetoden
National Category
Mechanical Engineering Vehicle and Aerospace Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-74332OAI: oai:DiVA.org:lnu-74332DiVA, id: diva2:1205459
Subject / course
Chief Engineer
Educational program
Marine Engineering Programme (4 years) with onboard practical training placement, 180 credits
Supervisors
Examiners
Available from: 2018-05-14 Created: 2018-05-14 Last updated: 2025-02-14Bibliographically approved

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Utmattningsanalys av marin ångpanna(1286 kB)518 downloads
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CiteExportLink to record
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Citation style
  • apa
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Output format
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