Results 51 to 60 of about 1,207,140 (178)

A Method of Top Tension Optimization of Drilling Riser-conductor System

Shiyou jixie, 2015
With the exploration of deep water towards ultradeep water,the harsh marine environment could lead to riser-conductor stability issues like buckling and alternating stress failure.The effective axial stress equation of the whole riser-conductor system ...
Deng Song, Fan Honghai, Shen Weige, Liu Jinge, Liu Yuhan, Niu Jun   +5 more
doaj  

Electro-mechanical vibration control of functionally graded marine risers by a piezoelectric meta-structure design

Applied Ocean Research
In this paper, a novel electro-mechanical meta-riser structure is designed aiming to suppress its vibration and wave propagation. The riser is made of porous functionally graded material (FGM), and is periodically attached with piezoelectric layers, each
Feng Liang, Zhi-Qiang Chen
doaj   +1 more source

Influence of Buoyancy Tank on Axial Vibration of Freestanding Rigid Riser

Shiyou jixie, 2017
The complex marine environment easily leads to periodic changes in buoyancy of buoyancy tank on freestanding riser system, resulting in axial vibration of rigid riser. When the buoyancy tank frequency is the same or close to the inherent frequency of the
Zhou Xingkun, Duan Menglan
doaj  

Response Design and Experimental Analysis of Marine Riser Buoy Observation System Based on Fiber Optic Sensing Under South China Sea Climatic Conditions

Journal of Marine Science and Engineering
Marine risers, critical structures connecting underwater production systems and surface floating platforms, stand freely in water and endure extremely complex marine environmental loads.
Lei Liang, Shuhan Long, Xianyu Lai, Yixuan Cui, Jian Gu   +4 more
doaj   +1 more source

Marine RTDI Measure Interim Report 2000-2002 [PDF]

, 2002
The Marine RTDI Measure Programme, developed by the Marine Institute for and on behalf of the Department of Communications, Marine & Natural Resources, is fully consistent with government strategy on marine resource development and builds on and develops
Marine Institute
core   +1 more source

Study on Fatigue Crack Growth Prediction and Machine Learning Correction for Deepwater Risers

Journal of Marine Science and Engineering
Under long-term marine environmental loading, deep-water risers are highly susceptible to fatigue damage, and the accumulation of local damage may lead to global structural failure. In this study, the fatigue damage mechanism and crack growth behavior of
Fucheng Wang, Yong Yang, Baolei Cui, Di Wang   +3 more
doaj   +1 more source

Dynamic analysis of the subsea production system with lazy-wave risers attached to FPSO. [PDF]

PLoS One, 2023
Zhang D, Zhao B, Zhu K, Jiang H.
europepmc   +1 more source

Industry-led awards 2018. Marine Institute Grant Awards in Support of the Marine Economy. [PDF]

, 2019
Innovation 2020, Ireland’s strategy for research and development, science and technology states that despite the importance of research and innovation for firms, firms under-invest in research.
Marine Institute
core   +1 more source

Global Asymptotic Stability of Solutions to Nonlinear Marine Riser Equation

Journal of Inequalities and Applications, 2010
This paper studies initial boundary value problem of fourth-order nonlinear marine riser equation. By using multiplier method, it is proven that the zero solution of the problem is globally asymptotically stable.
Gür Şevket
doaj  

Marine Institute's Monitoring Programme for Contaminants in Fish and Shellfish [PDF]

, 2006
The Marine Institute monitors the levels of priority hazardous substances in a range of commercial fish species landed at Irish ports and also in shellfish from selected sites around the Irish coast.Funder: Marine ...
Marine Institute
core   +1 more source