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介绍了使用ANSYS有限元软件对平台结构进行静力分析、动力分析和疲劳分析的方法。应用ANSYS软件可以直接对波流载荷作用下的平台进行有限元分析.而且建模简单、计算精度高。本文采用ANSYS软件建立起自升式平台的数学仿真模型,对自升式平台进行了动力响应分析,并且利用动力响应的分析结果得到平台构件的应力范围和循环次数,根据P-S-N曲线计算平台升降装置的疲劳损伤、估算升降装置的疲劳寿命。
The method of static analysis, dynamic analysis and fatigue analysis of the platform structure using ANSYS finite element software is introduced. The application of ANSYS software can directly analyze the platform under the wave-current load, and has the advantages of simple modeling and high calculation accuracy. In this paper, the mathematical simulation model of jack-up platform is established by using ANSYS software, the dynamic response of jack-up platform is analyzed, and the stress range and cycle number of platform components are obtained by dynamic response analysis. According to PSN curve calculation platform lift device Fatigue damage, fatigue life estimation lift device.