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Indexed by:期刊论文

Date of Publication:2009-12-01

Journal:CHINA OCEAN ENGINEERING

Included Journals:EI、ISTIC、SCIE、Scopus

Volume:23

Issue:4

Page Number:763-768

ISSN No.:0890-5487

Key Words:Vortex-Induced Vibration (VIV); barrel-shaped mast; covering ice; precise integration method

Abstract:The vortex-induced vibrations (VIV) of barrel-shaped mast are calculated by three numerical methods, i.e. New-mark - beta, HPD-L (High Precision Direct integration scheme-Linear form), and HPD-S (High Precision Direct integration scheme-Sinusoidal form). According to the measured value, the accuracy curves are given to show the advantages of HPD-S method over others. Based on the comparison above, HPD-S method is used to calculate the influence of ice covering on the mast to VIV responses. It has been proved that the vortex-induced responses of barrel-shaped mast are changed along with ice thicknesses and types.