船用柔性绳索的仿真研究  

Research on Simulation of Flexible Rope for Ship

作　　者：梁民仓 尹勇[1] 

机构地区：[1]大连海事大学航海动态仿真和控制交通部重点实验室,大连116026

出　　处：《系统仿真学报》2016年第9期1945-1949,1956,共6页Journal of System Simulation

基　　金：863课题(2015AA016404);海洋公益性行业科研专项(201505017-4);中央高校基本科研业务费专项资金(3132016310)

摘　　要：针对仿真系统中船用柔性绳索模拟存在实时性差、逼真度不够及易发散等问题,提出了一种基于质点-弹簧模型的结构-弯曲弹簧模型,该模型通过添加弯曲弹簧以限制绳子质点处的不正常弯曲现象,并可通过设置两种弹簧不同的弹性、阻尼系数以模拟不同硬度的绳索。为了保证模型运行稳定性及精度,采用改进的Euler法进行数值解算,同时运用位置调整法、速度调整法解决柔性绳索仿真时的超弹性问题,并通过仿真实验对该模型进行了验证。In view of the problems on unreal-time, less realistic and the instability of the marine flexible rope simulation system, one kind of structure-bending spring model was proposed based on the traditional mass-spring model. Bending springs were added in the model to limit the abnormal bending phenomenon in the particle of model by setting different elasticity and damping coefficient for two kinds of spring to simulate the ropes with different rigidity. In order to guarantee the stability and accuracy of the model, improved Euler method was adopted for numerical solution. At the same time, position adjustment method and speed adjustment method were used to solve the problem of super elasticity in the simulation of flexible rope, and verify the feasibility of the model by simulation experiments.

关 键 词：柔性绳索 质点-弹簧模型 结构-弯曲弹簧模型 超弹性问题 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]