摘要
为了准确获得深水钻井隔水管的静力学响应,给出了任意连续横向载荷作用下隔水管静力学位移响应的解析解。首先将隔水管纵向离散成若干梁单元,建立单元任意连续横向载荷作用下隔水管静态控制方程;然后通过对控制方程进行降阶变换求得其特解,并由节点的连续条件及边界条件提出了此方程隔水管位移响应的解析解表达式;最后以矩形流作用下隔水管位移响应问题为例,定量计算了隔水管的最大横向变形及其位置,结果达到要求。
The analytic solution of static displacement response of riser under arbitrary continuous transverse loads is given in order to accurately obtain the static response. First, the riser is divided into a number of discrete beam elements. The governing equation of the unit riser under arbitrary continuous transverse loads is established . Then the order for governing equation is reduced in order to obtain its special solution. The expression of analytic solution of displacement response is presented by the continuity condition and boundary conditions of the nodes. Finally, the maximum lateral deformation and its position of the riser with rectangular current are calculated as an exam- ple,which is a satisfactory result.
出处
《石油矿场机械》
2011年第7期21-24,共4页
Oil Field Equipment
关键词
深水钻井
隔水管
解析解
位移响应
deep-water drilling
drilling riser
analytic solution
displacement response
