基于改进狼群算法的海缆力学仿真分析  

Mechanical simulation analysis of submarine cable based on improved wolf pack algorithm

作　　者：孙云鹏 舒畅[1] 林海涛[1] SUN Yunpeng;SHU Chang;LIN Haitao(School of Electronic Engineering,Naval University of Engineering,Wuhan 430000,China)

机构地区：[1]海军工程大学电子工程学院,武汉430000

出　　处：《中国科技论文》2021年第7期776-782,共7页China Sciencepaper

摘　　要：为探究海洋复杂水流条件下海缆在敷设或拖曳时的水下姿态,确保海上作业的安全性,提出一种基于改进狼群算法(improved wolf pack algorithm,IWPA)的海缆力学分析方法。利用牛顿运动定律建立海缆的控制方程,考虑到控制方程的复杂性和非线性及传统龙格库-塔或牛顿迭代法的固有缺陷,将控制方程的求解转化为函数优化问题,引入狼群算法(wolf pack algorithm,WPA),并提出智能奔袭和基于标准差的种群更新策略对算法进行改进,用于对控制方程的求解,通过仿真得到海缆的水下位形曲线。结果表明,IWPA相比于其他算法收敛速度快,精度高,在海缆力学分析中具有可行性和有效性。In order to study the underwater posture of the submarine cable during laying or towing under complex ocean current conditions and ensure the safety of the submarine cable when operating at sea,a mechanics analysis method of submarine cable based on improved wolf pack algorithm(IWPA)was proposed.The submarine cable control equations were established by Newton’s law of motion,considering the complexity and nonlinearity of the governing equation and the inherent defects of the traditional Runge-Kutta or Newton iterative methods.The solution of the governing equations was transformed into a function optimization problem and the wolf pack algorithm(WPA)was introduced.The intelligent siege and standard deviation-based population update strategy was proposed to improve the algorithm,which was used to solve the control equation.The underwater configuration curves of the submarine cable were obtained through simulation.The simulation results show that the IWPA has faster convergence speed and higher accuracy than other algorithms.It is feasible and effective in the analysis of submarine cable mechanical behavior.

关 键 词：海缆 狼群算法 力学仿真分析 水下位形曲线 标准差更新 

分 类 号：TM757.4[电气工程—电力系统及自动化]