Wind-induced Dynamic Stability analysis of Derrick with Double Flat Arm. Issue 1 (June 2020)

• Record Type: Journal Article
• Authors: Li, Wenbin; Dong, Qi; Zhou, Fang; Ma, Chi; Liao, Yun; Ju, Yanzhong
• Is Part Of: IOP conference series. Volume 525:Issue 1(2020)
• Publication Date: 2020-06
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/525/1/012030
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In order to study the stability of a derrick under fluctuating wind load, the dynamic stability analysis is carried out to get the critical wind speed in dynamic instability. Considering the effect of the fluctuating wind, the mean wind speed in dynamic instability is 39 m/s. When the height of the derrick is greater than 80m, the wind-induced vibration coefficient value of time history analysis is greater than the calculation value of GB 50009-2012 code, the vibration coefficient should be raised for derricks with a height greater than 80m, and the wind-induced vibration coefficient of flat arms should be considered separately.