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Chaeog Lim, Ik-seung Han, Ju-Young Kang, Im-jun Ban, Byungkeun Lee, Jun Soo Park and Sung-chul Shin
Global ship analysis is conducted using a finite element model (FE model) for ship design and construction, which involves structural, motion, and vibration analyses. It is crucial to examine the structural safety of the hull and motion response. In the ...
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Enrique Aldao, Higinio González-Jorge, Luis Miguel González-deSantos, Gabriel Fontenla-Carrera and Joaquin Martínez-Sánchez
The inspection and maintenance of track ballast are fundamental tasks for the preservation of the condition of railway networks. This work presents an application based on a low-cost solid-state LiDAR system, which allows the user to accurately measure t...
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Zhipeng Zhu and Houlin Liu
Ship ballast pumps have stringent requirements for their transient characteristics. Here, the pneumatic control valve and programmable logic controller (PLC) are applied to realize the rapid reduction in flow rate for ballast pumps, and the dynamic press...
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Bonggil Hyun, Hyung-Gon Cha, Yeong-Kyu An, Yong-Seok Park, Min-Chul Jang, Pung-Guk Jang and Kyoungsoon Shin
To investigate the removal efficiency of the grinding device (GD) as a potential replacement for the pretreatment filtration device of ballast water, solid grinding and viability experiment were conducted according to a treatment flow rate of 5 tons (Pil...
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Tiecheng Wu, Wanzhen Luo, Dapeng Jiang, Rui Deng and Yulong Li
Particle image velocimetry is applied in this study to measure the wake flow field of a Panamax Bulker ship model under the ballast condition. This investigation revealed that the Froude number is 0.167. The time-averaged velocity, turbulent fluctuations...
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Bongsik Park, Yeong-Tae Choi and Hyunmin Kim
The advancement in digital image analysis methods has led to the development of various techniques, i.e., quantification of ballast gravel abrasion. In this study, the recognition rate of gravel aggregates has been significantly increased by improving th...
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Marco Polo Espinoza Haro, Jong-Chun Park, Dong-Hyun Kim and Sung-Bum Lee
In the present study, a 2-ton class seaweed harvesting boat was optimized by employing a W-shape hull form to reduce roll motion due to wake-wash from passing boats. A series of numerical simulations were conducted using Star-CCM+, a commercial CFD (comp...
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Sergej Antonello Sirigu, Ludovico Foglietta, Giuseppe Giorgi, Mauro Bonfanti, Giulia Cervelli, Giovanni Bracco and Giuliana Mattiazzo
Although sea and ocean waves have been widely acknowledged to have the potential of providing sustainable and renewable energy, the emergence of a self-sufficient and mature industry is still lacking. An essential condition for reaching economic viabilit...
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M.S. Kovacevic, K. Gavin, I. Stipanovic Oslakovic, M. Bacic
Pág. 1930 - 1939
The majority of the railway infrastructure in Croatia is over one hundred years old. In common with many other EU member states, a lack of investment in maintenance and renewal projects in over the last 30 years has resulted in generally poor track condi...
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