摘要
某陆上海况模拟平台可实现横摇、纵摇二自由度运动,模拟平台舱体内贮水,运动时舱内液晃对舱壁产生较大冲击力,严重时将影响舱体结构安全。为确保海况模拟平台安全可靠运行,有必要在设计阶段对舱壁所受动态液晃力特性开展分析。为此,开展模拟平台在横、纵摇复合运动下舱内液晃特性仿真研究。基于STARCCM+、AMESim和ADAMS软件,搭建模拟平台舱体液晃、液压驱动系统、舱体结构动力学联合仿真模型,将液晃对舱体的反作用力引入到液压驱动系统中,实时更新舱体的模拟姿态和加速度,提高了液晃对舱体作用力的计算精度。分析海况模拟平台内水面随舱体运动而产生的液晃过程,并分析各舱壁面所受液晃力的特性。仿真结果作为舱体结构设计的输入之一,有助于合理设计与优化舱体结构,此研究对同类型液晃力的分析也具有借鉴意义。
A land-based ship attitude simulation platform can realize two-degrees-of-freedom motion of pitch and rolling motion.Water is stored in the cabin of the simulation platform,and the liquid sloshing in the cabin produces a large impact force on the cabin wall during the motion,which will affect the structural safety of the cabin if it is severe.In order to ensure the safe and reliable operation of the ship attitude simulation platform,it is necessary to analyze the dynamic liquid sloshing force characteristics of the bulkhead at the design stage.For this purpose,a simulation study of the liquid-sloshing characteristics of the simulation platform under the combined motion of transverse and longitudinal rocking was carried out.Based on STARCCM+,AMESim and ADAMS software,a co-simulation model of the liquid-swaying process of the simulation platform,the hydraulic drive system and the dynamics of the cabin was constructed,and the force of the liquid-sloshing process on the cabin was introduced into the hydraulic drive system to update the simulated attitude and acceleration of the cabin in real time,so as to improve the calculation accuracy of the liquid-sloshing force on the cabin.The liquid-sloshing process of the water surface in the sea state simulation platform with the movement of the hull was analyzed,and the characteristics of the liquid-sloshing force on the wall surfaces of each hull were also analyzed.The simulation results are used as one of the inputs for the design of the hull structure,which is helpful for the rational design and optimization of the hull structure,and this study is of great significance for the analysis of the liquid-sloshing force of the same type.
作者
柯维
吴元昊
贾佳
储景瑞
杨钢
KE Wei;WU Yuanhao;JIA Jia;CHU Jingrui;YANG Gang(No.92942 of People′s Liberation Army of China,Beijing 100055,China;Hubei Institute of Aerospace Chemical Technology,Xiangyang Hubei 441100,China;School of Mechanical Science&Engineering,Huazhong University of Science&Technology,Wuhan Hubei 430074,China)
出处
《机床与液压》
北大核心
2025年第15期207-213,共7页
Machine Tool & Hydraulics
关键词
二自由度摇摆台
液晃力分析
联合仿真
海况模拟平台
two-degree-of-freedom platform
liquid-sloshing force analysis
co-simulation
ship attitude simulation platform
