Parameter sensitivity study of dynamic response for jack-ups by FEM analysis. (15th September 2016)

• Record Type: Journal Article
• Authors: Cao, Yuguang; Nie, Wenjun; Hu, Xueyang; Zhang, Shihua; Meng, Zhanbin; Xin, Lu; Yu, Jiancheng
• Is Part Of: Ocean engineering. Volume 124(2016)
• Page Start: 125
• Page End: 134
• Publication Date: 2016-09-15
• Subjects: Parameter sensitivity -- Dynamic response -- Jack-up -- Dynamic magnification factor; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2016.07.058
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: Jack-up platforms will generally behave as highly dynamic systems because of the structure flexibility. The environmental forces acting on these jack-ups will therefore induce significant dynamic response. In this paper, based on ANSYS, the three-dimensional model of a truss leg jack-up was built. With interaction of fluid–structure–soil being considered, a series of static analysis, modal analysis, and transient analysis were performed for the model with different dimensional or load parameters; and the dynamic magnification factors were calculated. Sensitivity of these parameters on the dynamic response of jack-ups were discussed in detail. Highlights: A series of static analysis, modal analysis, and transient analysis were performed for a FEM jack-up model. The interaction of fluid–structure–soil was considered. FEM analysis results of parameter sensitivity provided references for the design of jack-ups.