Analytical and numerical vibration analyses of marine genset foundations with pipe profiles

Öz

Since ships are very large and complex structures, they contain many members acting as vibration sources one of which is a marine genset. In this study, 11 different table-type marine genset foundation designs which are constructed using pipe profiles with various angles and which are acting as vibration reducers, have been investigated. These structures have been analyzed using both analytical and finite element methods. The study is generally based on solid modelling, modal and total deformation analyses of genset foundations using finite element method. As a result of these analyses, the design of the genset foundation which is acting as vibration reducer optimally, has been determined.

Anahtar Kelimeler

• Ship vibrations,modal Analysis,genset foundations

Boru profilli gemi jeneratör kaidelerinin titreşim açısından analitik ve sayısal analizi

Öz

Gemiler, çok büyük ve karmaşık yapılar olduklarından bünyelerinde titreşim kaynağı sayılabilecek bir çok eleman bulundurmaktadırlar. Bu çalışmada, gemi üzerinde yerel titreşimlere neden olan gemi jeneratör setleri için titreşim sönümleyici görevi gören ve farklı açılarda tasarlanmış boru profillerden oluşan tabla tipi 11 farklı kaide tasarımı üzerinde durulmuştur. Bu yapılar hem analitik hem de sonlu eleman yöntemiyle incelenmiştir. Çalışma, genel olarak, gemi jeneratör seti ve kaidelerinin katı modelleme yazılımıyla üç boyutlu katı modellerinin oluşturulması ve sonlu eleman metodu ile modal ve toplam deformasyon analizlerine dayanmaktadır. Bu incelemeler sonucunda hangi tasarımın titreşim sönümleme açısından en iyi sonucu verdiği belirlenmiştir.

Anahtar Kelimeler

• Gemi titreşimleri,modal analiz,jeneratör kaideleri

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