Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (5): 497-504.doi: 10.16183/j.cnki.jsjtu.2020.206

Special Issue: 《上海交通大学学报》2021年12期专题汇总专辑 《上海交通大学学报》2021年“海洋科学与工程”专题

Previous Articles     Next Articles

Comparative Test of Characteristics of Vortex-Induced Motion and Galloping of Classic Spar Platform

ZHANG Chenya1, KOU Yufeng1,2(), LÜ Haining1,2, XIAO Longfei1,2, LIU Mingyue1,2   

  1. 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2. SJTU-Sanya Yazhou Bay Institute of Deepsea Science and Technology, Sanya 572024, Hainan, China
  • Received:2020-07-01 Online:2021-05-28 Published:2021-06-01
  • Contact: KOU Yufeng


In order to study the characteristics of vortex-induced motion and galloping of the classic Spar platform, a model test with a mooring system is conducted in basin. The sway motion characteristics of the Spar platform at different current velocities are analyzed. By comparing the results in currents, waves, and wave-current coupled conditions, the coupling effects of current and wave on vortex-induced motion and galloping of the Spar platform are also studied. The results show that galloping is induced by the currents with high reduced velocities. Compared with the vortex-induced motion, the galloping phenomenon has a longer period, larger amplitude, and randomness. The coupling of current and wave would not change the mode of flow-induced motion, but it significantly affects the motion amplitude.

Key words: Spar platform, vortex-induced motion, galloping, model test, hydrodynamics of marine engineering

CLC Number: