基于USFOS软件的固定平台非线性地震时程分析  

Seismic Time History Analysis of Fixed platform Based on Software USFOS

作　　者：刘东亮[1] 

机构地区：[1]海洋石油工程股份有限公司,天津300452

出　　处：《中国造船》2016年第A01期436-442,共7页Shipbuilding of China

摘　　要：USFOS软件是国际领先的海洋工程专用的非线性分析软件,具有强大的非线性分析能力,在国外已广泛应用于深水,长振动周期的柔性固定平台的地震时程分析,但在国内尚未在实际工程中普及应用.论文以海油工程（COOEC）承担的某涉外项目中的导管架平台地震时程分析为例,重点阐述以下几方面的问题：（1）USFOS有限元模型及材料非线性模型的建立;（2）地震时程参数的输入;（3）时程分析结果的获取与分析;（4）USFOS非线性时程地震分析的要点.这些可为国内平台地震时程分析工程应用提供参考.USFOS is the leading software in ocean engineering for nonlinear analysis, with which highly nonlinear problems can be solved, and has been widely used in the worldwide in deep water flexible or fixed offshore platforms for seismic time history analysis. However, it hasn5t been widely applied in an actual project in China. In this paper, based on a foreign project conducted by COOEC, an example of seismic time history analysis has been presented to analyze the response to the earthquake under abnormal level seismic. The following aspects are mainly focused on： establishing a finite element model and nonlinear material model in USFOS, executing parameters input, obtaining and analyzing results. Key points in using USFOS to seismic time history analysis are summarized.

关 键 词：USFOS程序 固定平台 非线性分析 地震时程 

分 类 号：U661.43[交通运输工程—船舶及航道工程]