无动力运载器倾斜爬升式上浮特性分析  

Analysis of inclined climbing floating characteristics of unpowered vehicle

作　　者：张海洋 谷海涛[1,2] 林扬[1,2] 孙原[1,2] 高浩[1,2] 冯萌萌 ZHANG Haiyang;GU Haitao;LIN Yang;SUN Yuan;GAO Hao;FENG Mengmeng(State Key Laboratory of Robotics,Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China;Institutes for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110169,China;Department of Mechanical and Automation,Northeastern University,Shenyang 110819,China)

机构地区：[1]中国科学院沈阳自动化研究所机器人学国家重点实验室,辽宁沈阳110016 [2]中国科学院机器人与智能制造创新研究院,辽宁沈阳110169 [3]东北大学机械工程与自动化学院,辽宁沈阳110819

出　　处：《中国舰船研究》2020年第1期38-47,共10页Chinese Journal of Ship Research

基　　金：科技创新特区项目(17-H863-05-2T-002-030-05);中国科学院海洋信息技术创新研究院前沿基础研究项目(QYJC201913)。

摘　　要：[目的]为保证无动力运载器的上浮参数以及出水姿态满足要求,对无动力运载器倾斜爬升式上浮特性进行分析。[方法]基于STAR-CCM+的重叠网格技术、动态流体相互作用(DFBI)以及流体体积(VOF)波模型,采用CFD数值计算方法,对无动力运载器上浮过程进行动态仿真,研究无动力运载器自身比重、质心与浮心位置、舵角以及释放初速对其倾斜爬升式上浮参数以及出水姿态的影响。[结果]结果表明:当净浮力为运载器排水重量的0.15倍时,运载器纵倾角稳定在45°附近;当净浮力为运载器排水重量的0.10倍时,运载器在倾斜的过程中会经历一个回摆过程;并非净浮力越大,运载器上浮的垂直速度就越快,当净浮力为运载器排水重量的0.20倍时,上浮的垂直速度反而最小。[结论]研究结果可为无动力运载器的总体布局和控制设计以及其他领域应用无动力运载器的可行性分析提供一定参考。[Objectives]The inclined climbing floating characteristics of an unpowered vehicle are analyzed in order to ensure that the floating parameters and water-exit attitude of an unpowered vehicle meet the requirements.[Methods]Based on STAR-CCM+ overlapping grid technology and the Dynamic Fluid Body Interaction(DFBI) and Volume of Fluid(VOF) wave models, the dynamic simulation of the floating process of an unpowered vehicle is carried out using the CFD numerical calculation method. The effects of the specific gravity of the unpowered vehicle itself, positions of the mass and buoyancy center, rudder angle, initial launch velocity on its inclined climbing and floating parameters, and water-exit attitude are studied.[Results]The results show that when the net buoyancy is 0.15 displaced weight of the vehicle, the pitch angle of the vehicle is stable at around 45 degrees;when the net buoyancy is 0.10 displaced weight of the vehicle, the vehicle will experience a swing process in the course of inclined climbing;it is not the case that the greater the net buoyancy, the faster the vertical velocity of the vehicle, but the smallest vertical velocity is when net buoyancy is 0.20 displaced weight of the vehicle.[ Conclusions] The results of this study can provide references for the overall layout and control design of unpowered vehicles, as well as the feasibility analysis of the application of unpowered vehicles in other fields.

关 键 词：无动力运载器 倾斜爬升 STAR-CCM+ 上浮参数 

分 类 号：U661.1[交通运输工程—船舶及航道工程]