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Yu-Hsien Lin and Chia-Wei Lin
This study established a seakeeping program to evaluate the motion responses of a high speed semi-planing craft and to develop a database for future route planning. A series 62 mono-hull was chosen for the test cases, comparing seakeeping performances wi...
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Florin Pacuraru, Leonard Domnisoru and Sandita Pacuraru
The main transport channel of the global economy is represented by shipping. Engineers and hull designers are more preoccupied in ensuring fleet safety, the proper operation of the ships, and, more recently, compliance with International Maritime Organiz...
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Min-Soo Jeong, In Lee, Seung-Jae Yoo and Kwang-Choon Park
Aeroelastic instability problems have become an increasingly important issue due to the increased use of larger horizontal axis wind turbines. To maintain these large structures in a stable manner, the blade design process should include studies on the d...
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Alessandro Zarri, Julien Christophe, Stéphane Moreau and Christophe Schram
The low-speed fans used for automotive engine cooling contribute to a significant part of the global noise emitted by the vehicle. A low-order sound-prediction methodology is developed considering the blade sweep-angle effect on the acoustic predictions ...
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Marco Berci and Rauno Cavallaro
A hybrid reduced-order model for the aeroelastic analysis of flexible subsonic wings with arbitrary planform is presented within a generalised quasi-analytical formulation, where a slender beam is considered as the linear structural dynamics model. A mod...
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Marco Berci and Rauno Cavallaro
A hybrid reduced-order model for the aeroelastic analysis of flexible subsonic wings with arbitrary planform is presented within a generalised quasi-analytical formulation, where a slender beam is considered as the linear structural dynamics model. A mod...
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Tahsin Tezdogan, Atilla Incecik, Osman Turan, Paula Kellett
Pág. 1659 - 1668
The slow steaming approach is increasing in popularity for commercial vessels, as it provides a method of reducing fuel use, and therefore operating costs, in the current economic climate. It is very important to be able to evaluate a ship's response to ...
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Jens Ley and Ould el Moctar
Ship hull structural damages are often caused by extreme wave-induced loads. Reliable load predictions are required to minimize the risk of structural failures. One conceivable approach relies on direct computations of extreme events with appropriate num...
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Shaoyang Qiu, Hongxiang Ren and Haijiang Li
In order to improve the accuracy of the freefall of lifeboat motion simulation in a ship life-saving simulation training system, a mathematical model using the strip theory and Kane?s method is established for the freefall of the lifeboat into the water ...
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Hossam S. Abdelwahab, Shan Wang, Josko Parunov and C. Guedes Soares
A new uncertainty quantifier is presented for linear transfer functions of wave-induced ship motions and loads obtained by various seakeeping codes. The numerical simulations are conducted for the high-speed Flokstra container ship in regular waves at va...
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Aleksander Grm
This paper deals with the hydrodynamic effect of the ship on a flexible dolphin during a mooring manoeuvre. The hydrodynamic effect refers to the change in momentum of the surrounding fluid, which is defined by the concept of added mass. The main reason ...
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Yongmei Zhu, Rujun Li and Jiahao Yang
This study focused on the three-dimensional surface crack growth of a spherical pressure shell. Eight maraging steel 18Ni (250) samples were fabricated and tested, and the fatigue crack growth rate curves were obtained. Considering the influence of plast...
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Yiwen Wang, Weiguo Wu and C. Guedes Soares
The hydroelastic behaviour of a river-sea-going ship hull is analysed experimentally and numerically. A segmented ship model connected by a steel backbone is tested in regular waves, and its high-frequency vibrations such as springing and whipping respon...
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Andrew J. Eaton, Chris Howcroft, Etienne B. Coetzee, Simon A. Neild, Mark H. Lowenberg and Jonathan E. Cooper
This paper applies numerical continuation techniques to a nonlinear aeroelastic model of a highly flexible, high-aspect-ratio wing. Using continuation, it is shown that subcritical limit cycle oscillations, which are highly undesirable phenomena previous...
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Andrew J. Eaton, Chris Howcroft, Etienne B. Coetzee, Simon A. Neild, Mark H. Lowenberg and Jonathan E. Cooper
This paper applies numerical continuation techniques to a nonlinear aeroelastic model of a highly flexible, high-aspect-ratio wing. Using continuation, it is shown that subcritical limit cycle oscillations, which are highly undesirable phenomena previous...
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Jafar S. Pilakkadan, Rafic M. Ajaj, Zawar Haider and Mohammadreza Amoozgar
This paper studies the aeroelastic behavior of a rectangular, cantilever wing equipped with the spanwise morphing trailing edge (SMTE) concept. The SMTE consists of multiple trailing edge flaps that allow controlling the spanwise camber distribution of a...
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Rafic M. Ajaj, Erick I. Saavedra Flores, Mohammadreza Amoozgar and Jonathan E. Cooper
This paper presents a parametric study on the aeroelasticity of cantilever wings equipped with Flared Hinge Folding Wingtips (FHFWTs). The finite element method is utilized to develop a computational, low-fidelity aeroelastic model. The wing structure is...
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Ahmad Nayan and Tai Yan Kam
A new vibro-acoustic method is presented to analyze the sound radiation behavior of orthotropic panel-form sound radiators using strip-type exciters to exert line loads to the panels for sound radiation. The simple first-order shear deformation theory to...
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Vitaly Kozhusko,Sergey Krasnov,Kateryna Berezhna,Serhii Oksak,Roman Smolyanyuk
Pág. 37 - 44
This paper reports a study into the distribution capacity of a flexible plate in different cross-sections exposed to the external vertical concentrated forces applied in any place of its area. A plate with one pinched side and a series of racks arranged ...
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Timber folded surface structures assembled using semi-rigid multiple tab and slot joints (MTSJ) have been shown to form feasible structural systems with high load bearing potential. However, for their further development and use on large building scales,...
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