Passive vibration control of pipe-in-pipe (PIP) Systems subjected to vortex induced vibration (VIV)
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Copyright © 2017 by the International Society of Offshore and Polar Engineers (ISOPE). This paper proposes using modified pipe-in-pipe (PIP) system to mitigate vortex induced vibration (VIV). Numerical simulations are carried out to examine the effectiveness of the proposed method. Firstly, a semi-empirical oscillator model is developed and validated by an experimental test of a single pipe. The validated model is then extended to the modified PIP system, which is simplified as a structure-tuned mass damper (TMD) system in present study. The governing equation of vibration is solved in the time domain using MATLAB/Simulink programming. The results demonstrate that the carefully designed PIP system can significantly suppress VIV of offshore cylindrical structures up to 84%.
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Bi, Kaiming; Hao, Hao (2016)Pipe-in-pipe (PIP) systems are increasingly used in subsea pipeline applications due to their favourable thermal insulation capacity. Pipe-in-pipe systems consist of concentric inner and outer pipes, the inner pipe carries ...
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Passive vibration control of cylindrical offshore components using pipe-in-pipe (PIP) concept: An analytical studyMatin Nikoo, H.; Bi, Kaiming; Hao, H. (2017)© 2017 Elsevier Ltd This paper aims to propose a design of using the revised PIP system to control vortex induced vibrations (VIV) of cylindrical structural components. Analytical studies are carried out to examine the ...