The dynamic responses of TTRs in the deep water were studied considering coupled the random heave of platform and VIV. The random parametric excitation is set up considering the random motion of platform. The vortex lift force is calculated with the time-varying lift coefficient based on the Van der Pol drafting oscillator model. The equation of coupled VIV and parametric excitation vibration (PEV) is established and the program of solving coupled PEV and VIV is developed. The coupled dynamic response induced by random parametrical excitation and VIV is calculated for the TTR of Truss Spar, and the dynamic characteristics are investigated. The results show that the random parametrical excitation can magnify the dynamic response of TTRs, and it will change the main frequency of TTRs vibration.
The Dynamic Response Induced by the Random Heave of Platform and Vortex for TTRs
- Views Icon Views
- Share Icon Share
- Search Site
Tang, Y, Wang, L, Li, Y, & Liu, Z. "The Dynamic Response Induced by the Random Heave of Platform and Vortex for TTRs." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 4A: Pipeline and Riser Technology. Nantes, France. June 9–14, 2013. V04AT04A023. ASME. https://doi.org/10.1115/OMAE2013-10203
Download citation file: