Based on the dynamic analysis of free-hanging risers, an improved Ant Colony Optimization (ACO) was proposed for optimizations of accelerations of equallength 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.
王盛炜,徐雪松,姚宝恒,连琏. 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[J]. 上海交通大学学报(自然版), .
WANG Shengwei,XU Xuesong,YAO Baoheng,LIAN Lian. Improved Ant Colony Optimization for Accelerations of Equal-length Paths of Riser Re-entry. J. Shanghai Jiaotong Univ.(Sci.) , 2013, 47(10): 1585-1590.
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