Results 11 to 20 of about 126,940 (259)
Study on key performance parameters of hydro-pneumatic tensioner for top tensioned riser [PDF]
Applied Ocean Research, 2019 Abstract In this paper an improved mathematical model of a hydro-pneumatic tensioner (HPT) system for top tensioned riser (TTR) is derived by consideration of friction, mass of piston and piston rod, tension loss in hydraulic oil piping, and compressibility of hydraulic oil. The vertical motion of the riser string is also considered.
Baiquan Chen +6 more
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Sensors, 2019 A vortex-induced vibration (VIV) experiment on a standing variable-tension deepsea riser was conducted to investigate the applicability and sensitivity of Bare Fiber Bragg Grating (BFBG) sensor technology for testing deepsea riser vibrations.
Peng Li +7 more
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Micromachines, 2022 In electrowetting-on-dielectric (EWOD) platform, the transfer of droplets from the EWOD boundary region (top plate and bottom plate) to the open region is challenging.
Yii-Nuoh Chang, Da-Jeng Yao
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Journal of Engineering and Sustainable Development, 2021 Reactive powder concrete and high strength concrete have superior mechanical and structural properties, however, the major drawback of this new construction material is its high cost compared to traditional concrete.
Hiba A. Sabit, Aamer N. Abbas
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Dual-Algorithm Hybrid Method for Riser Structural Health Monitoring Using the Fewest Sensors
Journal of Marine Science and Engineering, 2022 This study suggests a novel riser structural health monitoring methodology based on a dual algorithm (DA). In this method, the displacement tracing algorithm first traces the node displacement and tension up to the last sensor position called the target ...
Woo Chul Chung +2 more
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Estimation of top tensions in mooring lines by sensor fusion
Marine Structures, 2022 The paper describes a sensor fusion method that provides reliable, uninterrupted and bias-free estimates of the top tension in a mooring line. The method exploits the geometric nonlinearity of mooring systems installed in shallow to moderate water depths: a change of line length (due to winching) affects the local dynamic stiffness of the mooring line.
Thomas Sauder +3 more
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In-plane effect on out-of-plane capacity of separated infill wall [PDF]
Numerical Methods in Civil Engineering, 2018 In this paper, by using a finite element model, the in-plane drift effect on the out-of-plane behavior of the infilled frame with weak infill walls has been calculated.
A. Keyvani Borujeni, T. Mahdi
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Preliminary Study on the Optimum Design of a Tension Leg Platform for Offshore Wind Turbine Systems
Journal of Fluid Science and Technology, 2011 We demonstrate a procedure for determining the configuration of a tension leg platform (TLP) on which a 2.4 MW wind turbine can be installed. Various sizes of the structural elements of the TLP are examined to investigate their effects on tendon tension ...
Kenji SHIMADA +7 more
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Journal of Marine Science and Application, 2022 AbstractIn this study, the dynamics of the tendon/top tension riser (TTR) system of a tension-leg platform (TLP) are investigated through an experiment and by using absolute nodal coordinate formulation (ANCF). First, the model test of the TLP system is conducted in the water tank of Harbin Engineering University to examine the motion response of the ...
Zhuang Kang +4 more
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Numerical study of vibrations of a vertical tension riser excited at the top end
Journal of Ocean Engineering and Science, 2017 This paper presents numerical simulations of vortex-induced vibrations of a vertical riser which is sinusoidally excited at its top end in both one and two directions in still water. A computational fluid dynamics method based on the strip theory is used.
Bowen Fu, Decheng Wan
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