Abstract
Vortex induced vibration (VIV) should be taken into account for the vibration analysis of a cantilevered marine riser. This paper is dedicated to the VIV for the nonlinear vibration analysis of a cantilevered pipe discharging fluid with a nozzle at sea. In this study, three dimensional (3-D) motion equations are derived based on modified Hamilton Principle in a rigorous way. The Morison formula is used to calculate the external fluid-induced static drag force and viscous damping forces in the in-line (IL) and cross-flow (CF) directions. A double-van der Pol oscillator model is adopted employing a set of calibrated wake coefficients in Facchinetti et al. (2004) for the VIV effect. A new hydrodynamic force model is proposed considering the coupling effect of IL and CF motions. The mathematical model together with proposed solution methods are validated after comparisons with experimental results.
Original language | English |
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Title of host publication | 9th IFAC Conference on Control Applications in Marine Systems, CAMS 2013 - Proceedings |
Publisher | IFAC Secretariat |
Pages | 374-379 |
Number of pages | 6 |
Volume | 46 |
Edition | 33 PART 1 |
ISBN (Print) | 9783902823526 |
DOIs | |
Publication status | Published - Jan 1 2013 |
Event | 9th IFAC Conference on Control Applications in Marine Systems, CAMS 2013 - Osaka, Japan Duration: Sep 17 2013 → Sep 20 2013 |
Other
Other | 9th IFAC Conference on Control Applications in Marine Systems, CAMS 2013 |
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Country | Japan |
City | Osaka |
Period | 9/17/13 → 9/20/13 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering