针对立管重入井过程中等路径段加速度的改进型蚁群优化算法  

Improved Ant Colony Optimization for Accelerations of Equal-length Paths of Riser Re-entry

作　　者：王盛炜[1] 徐雪松[1] 姚宝恒[1] 连琏[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《上海交通大学学报》2013年第10期1585-1590,共6页Journal of Shanghai Jiaotong University

摘　　要：在自由悬垂立管动力学分析的基础上,提出了一种针对等路径段内的加速度进行优化的改进型蚁群算法.通过该算法得出的立管顶端的优化运动策略,可以有效地减小立管底端在平移结束时同海底井口的距离,同时缩短重入井作业需要的时间,使得钻井立管重入井作业更加便捷.通过对比在优化后的运动策略下和在普通的运动策略下自由悬垂立管的不同动力学响应和型态变化,说明针对等路径段加速度进行优化的蚁群优化算法可以有效地优化立管重入井过程中的立管型态和运动,使重入井作业更加便捷.Based on the dynamic analysis of free-hanging risers, an improved Ant Colony Optimization （ACO） was proposed for optimizations of accelerations of equal-length paths. Via the improved ACO, an optimized motion scheme for the upper end was obtained. Under the optimized motion scheme, the distance from the lower end to wellhead was effectively decreased and the re-entry took less time, which made the re-entry operation more convenient. In this paper, the different dynamic response and riser shape changes under optimized motion scheme and ordinary motion scheme were compared. The results demonstrate that the motion optimizations of the improved ACO is effective, and the optimized motion scheme obtained via improved ACO could make the re-entry more convenient.

关 键 词：自由悬垂立管 立管重入井 动力学分析 运动优化 改进型蚁群算法 

分 类 号：P756[天文地球—海洋科学]