摘要
水下夹桩器是一种广泛应用于海洋石油平台建设的液压夹具。水下夹桩器压块齿夹持导管架,提供很大的夹持力。在水下夹桩器压块齿设计中应用增强拉格朗日算法对夹桩器压块齿接触问题进行有限元分析。建立了压块齿和钢桩接触有限元模型,利用ANSYS软件完成了接触计算,获得压块齿顶接触压力及其挤压变形等结果。并将该结果与理论计算结果进行了比较,设计结果满足工程要求,为改进和优化结构提供了依据,节省了分析计算时间。
Underwater skirt pile gripper was a kind of hydraulic gripper. And it was widely applied in the construction of offshore oil platform. The platform was clamped by pressing block teeth. Augmented Lagrange method combined with finite element analysis was introduced into the pressing block tooth of underwater skirt pile gripper contact design. The body contact design model of pressing block tooth and steel pile was built, and calculated by ANSYS. The contact pressure and extrusion conditions of the pressing block tooth were then obtained, and compared to the theoretical calculation result. The engineering demands were well satisfied. The theoretical basis was provided. And the calculation time was shortened.
出处
《机械》
2006年第12期1-4,共4页
Machinery
基金
国家863课题-长桩起吊技术研究(2002AA602012-1)
关键词
海洋石油平台
水下失桩器
压块齿
有限元分析
接触
增强拉格朗日算法
offshore oil platform
underwater skirt pile gripper, pressing block tooth
finite element analysis
contact
augmented Lagrange method
