Searched for: department:"Marine%5C+and%5C+Transport%5C+Technology"
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Ye, J. (author)
Autonomous vessels have developed into a popular research area in both industry and academia. The application of autonomy in offshore and coastal engineering could offer a safe and efficient solution to offshore transportation and operation. However, the state of the art in research has focused on waterborne transportation. Very limited research...
doctoral thesis 2020
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Damala, Dimitra (author), Verbaas, Frans (author), Bonci, M. (author), Akkerman, I. (author), Hopman, J.J. (author)
What it is Broaching-to?<br/>When it can occur?<br/>What can happen if it happens?<br/>What is known about it?<br/>How it can be investigated further?<br/>Practical ways to prevent it in design and in operation
report 2020
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Li, Z. (author), Jiang, X. (author), Hopman, J.J. (author)
The surface crack, also known as the partly through-thickness crack, is a serious threat to the structural integrity of offshore metallic pipes. In this paper, we review the research progress in regard to surface crack growth in metallic pipes subjected to cyclic loads from the fracture mechanics perspective. The purpose is to provide state-of...
review 2020
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Li, Z. (author), Jiang, X. (author), Hopman, J.J. (author), Zhu, Ling (author), Liu, Zhiping (author)
In the present paper, we propose an analytical method to calculate the Stress Intensity Factor (SIF) of circumferential surface cracks in steel pipes subjected to bending. In light of pipe geometry and bending load case, the analytical formula is raised by introducing new bending correction factors and new geometry correction factors on the...
journal article 2020
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Bonci, M. (author), de Jong, Pepijn (author), van Walree, Frans (author), Renilson, Martin (author), Keuning, J.A. (author), van 't Veer, A.P. (author)
The coupling between heel and the loads in the horizontal plane is usually neglected in manoeuvrability studies. However, the heel–sway and heel–yaw coupling can play an important role in potentially unsafe conditions, such as in a following sea. In these conditions, small fast vessels experience dynamic instabilities which threaten their...
journal article 2020
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Habben Jansen, A.C. (author), Duchateau, E.A.E. (author), Kana, A.A. (author), Hopman, J.J. (author)
Vulnerability reduction is an important topic during the design of naval ships because they are designed to operate in hostile environments and because their on-board distributed systems are becoming increasingly complex. The vulnerability needs to be addressed in the early design stages already, in order to prevent expensive or time...
journal article 2020
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Li, Z. (author), Jiang, X. (author), Hopman, J.J. (author), Zhu, Ling (author), Liu, Z. (author), Tang, Weiguo (author)
Surface cracked steel plates reinforced with single-side Fiber-Reinforced Polymer (FRP) subjected to cyclic tension are experimental studied. The main purpose is to analyze the effect of FRP reinforcement on the crack growth. The failure modes and their effects are analyzed as well. Given the single-side reinforcement, reinforcing the cracked...
journal article 2020
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Habben Jansen, A.C. (author), de Vos, P. (author), Duchateau, E.A.E. (author), Stapersma, D. (author), Hopman, J.J. (author), van Oers, B.J. (author), Kana, A.A. (author)
Naval ships are designed to operate and survive in hostile environments. As such, vulnerability reduction is a major topic of interest during the design of a naval ship. For modern naval ships the vulnerability is largely determined by the design and layout of distributed systems. The vulnerability of these systems needs to be assessed early on,...
journal article 2020
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Li, Z. (author), Jiang, X. (author), Hopman, J.J. (author), Zhu, Ling (author), Liu, Zhiping (author)
In this paper, we experimentally studied the external surface crack growth in steel pipes reinforced with Composite System Repaired (CRS). CRS reinforced surface cracked API 5L X65 pipes were tested, containing three initial notch sizes and four reinforcement schemes. During the tests, the crack growth results, as well as the strain on the...
journal article 2020
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Zeng, Q. (author), Hekkenberg, R.G. (author), Thill, C.H. (author), Hopman, J.J. (author)
The conventional extrapolation of ship resistance from model tests to full scale presumes that the coefficient of wave-making resistance (C<sub>w</sub>) depends on the Froude number only. This leads to the assumption that C<sub>w</sub> of a ship is identical to C<sub>w</sub> of its scaled model. However, this assumption is challenged in...
journal article 2020
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Chen, L. (author), Huang, Y. (author), Zheng, Huarong (author), Hopman, J.J. (author), Negenborn, R.R. (author)
Urban waterways have great potential in cargo transport to relieve the congestion in the overloaded road networks. This paper explores the potential of applying cooperative multi-vessel systems (CMVSs) to improve the safety and efficiency of transport in urban waterway networks. A framework consisting of vessel train formation (VTF) and...
journal article 2020
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Hagen, N. (author)
A belt conveyor system is a commonly used mean of transportation for dry bulk material. The system components are subjected to wear because of the multiple rotating components. This will result in component failures on the long run. Maintenance or replacement actions are required for these components in order to prevent these system failures. In...
report 2019
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Olberts, O.L. (author)
report 2019
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Van Pampus, M.J. (author)
With growing demands on speed and amount of freight transport and simultaneous technological progress in data processing and the development of mobile applications, possibilities for the freight transport sector arise. In this paper we specifically look into the latest developments in the field of instant freight transport, i.e. services...
report 2019
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Ye, J. (author), Roy, S. (author), Godjevac, M. (author), Baldi, S. (author)
With the growing demand of large-scale heavy lift vessels in the deep-sea offshore construction works, high performance of Dynamic positioning (DP) systems is becoming ever crucial. However, current DP systems on board of heavy lift vessels do not consider model uncertainty (typically arising from mooring forces). In this paper, an observer...
journal article 2019
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Bordogna, G. (author), Muggiasca, S. (author), Giappino, S. (author), Belloli, M. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), van 't Veer, A.P. (author)
The Flettner rotor is attracting increasing attention as a viable technology for wind-assisted ship propulsion. Nonetheless, the influence of the Reynolds number on the aerodynamic performance of rotating cylinders is still unclear and under debate. The present study deals with a series of wind-tunnel experiments on a large-scale Flettner...
journal article 2019
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Qin, Y. (author), den Besten, J.H. (author), Palkar, S.S. (author), Kaminski, M.L. (author)
Fatigue is a governing design limit state for marine structures. Welded joints are important in that respect. The weld notch stress (intensity) distributions contain essential information and formulations have been established to obtain a total stress fatigue damage criterion and corresponding fatigue resistance curve; a total stress concept....
journal article 2019
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Chen, L. (author), Hopman, J.J. (author), Negenborn, R.R. (author)
Compared to an individual Autonomous Surface Vessel (ASV), greater efficiency and operational capability can be realized by a team of cooperative ASVs for certain operations, such as search and rescue, hydrographic survey and navigation assistance. This paper focuses on cooperative floating object transport, i.e., a group of ASVs coordinate...
journal article 2019
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Li, Z. (author), Jiang, X. (author), Hopman, J.J. (author)
In this paper, Composite Repair System (CRS) is applied to repair the circumferential internal surface cracked steel pipes subjected to bending. The Stress Intensity Factor (SIF) is quantitatively analysed by means of numerical simulations, and the crack growth rate is predicted by using the Paris’ law. First, the three-dimensional finite...
journal article 2019
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Habben Jansen, A.C. (author), Kana, A.A. (author), Hopman, J.J. (author)
Naval ships are designed to operate in a hostile environment. As such, vulnerability is an important aspect that needs to be assessed during the design. With the increased interest in electrification and automation on board naval ships, the vulnerability of distributed systems has become a major topic of interest. However, assessing this is...
journal article 2019
Searched for: department:"Marine%5C+and%5C+Transport%5C+Technology"
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