Results 151 to 160 of about 356,299 (186)

Experimental Investigations on the Hydrodynamic Characteristics of Heave Plate

Volume 5: Ocean Engineering, 2013
Heave plates are installed in Spar platforms to improve the heave motion performance of the platforms. The heave plates not only increase the equivalent added mass of the platform but also provide extra damping to the system. This article presents an experimental study on the hydrodynamic characteristics of an isolate heave plate.
Xinliang Tian, Jianmin Yang, Xin Li, Tao Peng   +3 more
openaire   +1 more source

Model Experiments of Hydrodynamic Forces on Heave Plates

24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 1, Parts A and B, 2005
For truss SPAR platforms, damping plates are employed to increase the added mass and viscous drag in the heave direction. The paper aims to investigate experimentally the hydrodynamic forces on heave plates with different opening sizes. Model scale experiments were carried out on three 40 by 40cm flat plates to investigate the effects of oscillation ...
Kie Hian Chua, David Clelland, Shan Huang, Andy Sworn   +3 more
openaire   +1 more source

A Deep Draft Semisubmersible with a Retractable Heave Plate

Offshore Technology Conference, 2002
Abstract Gulf of Mexico deep water oil fields present challenges to the offshore industry. Large fields require heavy drilling and production topsides which favor inshore deck installation, hook-up and commissioning in order to reduce time, costs and risks associated with carrying out such operations offshore. Harsh
J. Halkyard, J. Chao, P. Abbott, J. Dagleish, H. Banon, K. Thiagarajan   +5 more
openaire   +1 more source

Influence of Heave Plate on Hydrodynamic Response of Spar

Volume 1: Offshore Technology; Polar and Arctic Sciences and Technology, 2011
Spar technology has been used in offshore oil and gas exploration successfully for number of years for drilling, production and storage in deepwater. The motion response of floating structures especially the heave response in particular, is very important to the selection of suitable drilling and production equipments.
S. Sudhakar, S. Nallayarasu
openaire   +1 more source

Improving the Motions of a Semi by the Addition of Heave Plates

Volume 1: Offshore Technology, 2008
Similar to the manner in which heave plates provide a Truss Spar with low global motions, a heave plate system can be used to significantly mitigate the motions of a conventional semi-submersible. This paper will focus on the global performance of a conventional semi-submersible that has been properly configured with heave plates.
Cheng-Yo Chen, Yun Ding, Trevor Mills, John Murray   +3 more
openaire   +1 more source

Heave Plate Design With Computational Fluid Dynamics

Journal of Offshore Mechanics and Arctic Engineering, 2000
Computational fluid dynamics (CFD) methods are used to predict the hydrodynamic loads on heave plates. A series of numerical simulations for plates undergoing simple harmonic motion is used to determine the force and moment resultant histories. Then a least mean squares method is used to obtain the appropriate Morison coefficients for the plates under ...
Samuel Holmes, Shankar Bhat, Pierre Beynet, Anil Sablok, Igor Prislin   +4 more
openaire   +1 more source

Hydrodynamic Performance of Conical Shaped Heave Plates

2019 Offshore Energy and Storage Summit (OSES), 2019
Heave plates are commonly employed as an effective and sustainable method to dampen unwanted oscillations of floating offshore structures caused by wave action. Such motion in the case of offshore floating wind turbines (OFWT) can reduce aerodynamic performance and increase fatigue loading. While the performance of flat heave plates is well documented,
Robert Mecrow, Seamus Garvey
openaire   +1 more source

Assessment of Nonlinear Heave Damping Model for Spar With Heave Plate Using Free Decay Tests

Volume 2: CFD and VIV, 2016
Linear damping models have been used in the past for solving floating body dynamics, especially for simple geometries such as spar. However, due to the addition of heave damping elements to spar such as heave plate, complex flow around these elements may change the relationship between damping and velocity of the body to nonlinear.
Mahesh J. Rao, S. Nallayarasu, S. K. Bhattacharyya   +2 more
openaire   +1 more source

A Numerical Study of a Submerged Horizontal Heaving Plate as a Breakwater

Journal of Coastal Research, 2017
ABSTRACT Liu, C.; Huang, Z., and Chen, W., 2017. A numerical study of a submerged horizontal heaving plate as a breakwater. Using a nonlinear numerical wave tank (NWT) based on potential flow, a submerged horizontal plate heaving in regular waves was simulated, and its performance as a breakwater was examined.
Chunrong Liu, Zhenhua Huang, Weipeng Chen   +2 more
openaire   +1 more source

Scaling the self-propulsive performance of pitching and heaving flexible plates

Journal of Fluid Mechanics, 2022
Self-propulsive performances of the flexible plates undergoing pitching and heaving motions are investigated numerically. The effects of multiple key dimensionless parameters are considered, such as bending stiffness, heaving amplitude, pitching amplitude and flapping frequency.
Kui Liu, Xuechao Liu, Haibo Huang
openaire   +1 more source