Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system

The structural intensity analysis, which calculates the magnitude and direction of vibrational energy flow from vibratory velocity and internal force at any point of a structure, can give information on dominant transmission paths, positions of sources and sinks of vibration energy. This paper prese...

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Main Authors: Dae-Seung Cho, Kyung-Soo Kim, Byung-Hwa Kim
Format: Article
Language:English
Published: Elsevier 2010-06-01
Series:International Journal of Naval Architecture and Ocean Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2092678216302357
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author Dae-Seung Cho
Kyung-Soo Kim
Byung-Hwa Kim
author_facet Dae-Seung Cho
Kyung-Soo Kim
Byung-Hwa Kim
author_sort Dae-Seung Cho
collection DOAJ
description The structural intensity analysis, which calculates the magnitude and direction of vibrational energy flow from vibratory velocity and internal force at any point of a structure, can give information on dominant transmission paths, positions of sources and sinks of vibration energy. This paper presents a numerical simulation system for structural intensity analysis and visualization to apply for ship structures based on the finite element method. The system consists of a general purpose finite element analysis program MSC/Nastran, its pre- and post-processors and an in-house program module to calculate structural intensity using the model data and its forced vibration analysis results. Using the system, the structural intensity analysis for a 4,100 TEU container carrier is carried out to visualize structural intensity fields on the global ship structure and to investigate dominant energy flow paths from harmonic excitation sources to superstructure at resonant hull girder and superstructure modes.
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spelling doaj.art-17fbc9a080d6435aad4c4bbd4c60818f2022-12-21T18:14:25ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822010-06-0122879510.2478/IJNAOE-2013-0023Structural intensity analysis of a large container carrier under harmonic excitations of propulsion systemDae-Seung Cho0Kyung-Soo Kim1Byung-Hwa Kim2Dept. of Naval Architecture and Ocean Engineering, Pusan National University, KoreaDept. of Naval Architecture and Ocean Engineering, Pusan National University, KoreaNew Products R&D Team, Daewoo Shipbuilding & Marine Engineering Co., Ltd., KoreaThe structural intensity analysis, which calculates the magnitude and direction of vibrational energy flow from vibratory velocity and internal force at any point of a structure, can give information on dominant transmission paths, positions of sources and sinks of vibration energy. This paper presents a numerical simulation system for structural intensity analysis and visualization to apply for ship structures based on the finite element method. The system consists of a general purpose finite element analysis program MSC/Nastran, its pre- and post-processors and an in-house program module to calculate structural intensity using the model data and its forced vibration analysis results. Using the system, the structural intensity analysis for a 4,100 TEU container carrier is carried out to visualize structural intensity fields on the global ship structure and to investigate dominant energy flow paths from harmonic excitation sources to superstructure at resonant hull girder and superstructure modes.http://www.sciencedirect.com/science/article/pii/S2092678216302357Structural intensityFinite element methodShip structureContainer carrier
spellingShingle Dae-Seung Cho
Kyung-Soo Kim
Byung-Hwa Kim
Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
International Journal of Naval Architecture and Ocean Engineering
Structural intensity
Finite element method
Ship structure
Container carrier
title Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
title_full Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
title_fullStr Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
title_full_unstemmed Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
title_short Structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
title_sort structural intensity analysis of a large container carrier under harmonic excitations of propulsion system
topic Structural intensity
Finite element method
Ship structure
Container carrier
url http://www.sciencedirect.com/science/article/pii/S2092678216302357
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