Vibroacoustic analysis of a submarine-propeller system under self-propulsion condition from the perspective of approximate configurations

Ismail Kahraman, Gürbüz Bilici, Ramazan Tufan Azrak, Enes Tunca, Akif Kutlu, Bahadır Uğurlu*

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Araştırma sonucu: ???type-name???Makalebilirkişi

4 Atıf (Scopus)

Özet

As a particular instance of the complete acoustic radiation problem for an underwater structure, structure-borne noise radiated from a combined submarine-propeller system under self-propulsion condition is investigated. The analysis procedure applies a set of numerical methods to capture different aspects of the problem: unsteady computational fluid dynamics to express the hydrodynamic excitation, finite element analysis to obtain the dynamic characteristics of the combined elastic system, and boundary element method to assess the radiated noise owing to structural vibrations. The structural and acoustic responses rely on the modal descriptions. The study has three objectives: employing the methodology in a realistic setting, investigating the validity of the proposed approximate configurations, and studying the influence of propeller blade flexibility on noise radiation. The DARPA-SUBOFF submarine and INSEAN E1619 propeller models are adopted for the application. It is found that approximate configurations provide accurate estimations for limited frequency bands and should be employed with caution. In addition, the flexibility of the propeller plays a major role in noise generation, not only by yielding higher noise levels but also by increasing the amplitude of the peak responses in the low- and high-frequency regions.

Orijinal dilİngilizce
Makale numarası115231
DergiOcean Engineering
Hacim285
DOI'lar
Yayın durumuYayınlandı - 1 Eki 2023

Bibliyografik not

Publisher Copyright:
© 2023 Elsevier Ltd

Finansman

This document is the result of the research projects funded by TUBITAK, Turkey (Project No: 221M042 ) and ITU-BAP, Turkey (Project No: MGA-2021-43076 ). Authors thank The Scientific and Technological Research Council of Türkiye (TUBITAK) and Istanbul Technical University Research Fund (ITU-BAP) for the support they provided.

FinansörlerFinansör numarası
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu221M042
Istanbul Teknik Üniversitesi
Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik ÜniversitesiMGA-2021-43076

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