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水下机器人试航速度的类物理数值方法预报
Alternative TitlePrediction of Autonomous Underwater Vehicle Cruising Velocity Using a Physics-based Numerical Method
吴利红1,2; 张爱锋1; 李一平2; 封锡盛2; 王诗文1
Department水下机器人研究室
Source Publication哈尔滨工程大学学报
ISSN1006-7043
2020
Pages1-6
Contribution Rank1
Funding Organization国家重点研发计划(2017YFC0305901) ; 国家自然科学基金项目(51009016) ; 机器人学国家重点实验室开放课题(2016-O04) ; 中央高校基本科研业务费专项资金(3132017030)
Keyword自航试验 水下机器人 动网格 类物理数值模拟 螺旋桨 试航速度 计算流体力学 操纵性
Abstract水下机器人试航速度是评价推进系统性能和续航能力的重要指标。针对水下机器人试航速度预报问题,提出类物理数值预报方法。建立水下机器人包含桨舵的全附体模型,采用多块动态混合网格方法进行网格构建和更新,编写用户自定义函数,求解六自由度方程和非定常雷诺平均NS方程进行水下机器人和螺旋桨力和速度的计算和传递,实现以螺旋桨旋转运动推进水下机器人自航的运动过程模拟。数值结果表明,水下机器人试航速度1.5m/s对应的转速为570r/min;自航模拟可见螺旋桨梢涡曳出,梢涡强度和螺旋桨推力随航速增加而降低。数值模拟再现了非定常运动过程中船桨舵相互作用机理,有利于水下机器人复杂操纵运动的精确预报。
Other AbstractThe cruising velocity of autonomous underwater vehicle (AUV) plays an important role on evaluation of the thrust system performance and cruising endurance. This paper presented a physics-based numerical method for prediction of AUV’s cruising velocity. The full model of AUV appended propeller and rudder was built. A multi-block hybrid dynamic grid method was used to mesh the domain and re-meshing. User defined functions (UDFs) were programmed. Six degree of freedom (6DOF) and unsteady Reynolds averaged Navier-Stokes (URANS) were solved to transfer forces and velocities between AUV and propeller. Thus, the free motion of AUV pushed by the rotating propeller from stationary to uniform velocity was simulated. The numerical results showed that the rotating speed was 570 r/min at the cruising velocity of 1.5m/s. The tip vortexes were produced in self-propulsion motion. The strength of tip vortexes and propeller thrust decreased as AUV velocity increased. The simulation investigated the unsteady flow field among the hull, propeller and rudders in detail, which is helpful to conduct a precise maneuvering prediction of AUV in complex environment.
Language中文
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/25732
Collection水下机器人研究室
Corresponding Author张爱锋
Affiliation1.大连海事大学船舶与海洋工程学院
2.中国科学院沈阳自动化研究所机器人学国家重点实验室
Recommended Citation
GB/T 7714
吴利红,张爱锋,李一平,等. 水下机器人试航速度的类物理数值方法预报[J]. 哈尔滨工程大学学报,2020:1-6.
APA 吴利红,张爱锋,李一平,封锡盛,&王诗文.(2020).水下机器人试航速度的类物理数值方法预报.哈尔滨工程大学学报,1-6.
MLA 吴利红,et al."水下机器人试航速度的类物理数值方法预报".哈尔滨工程大学学报 (2020):1-6.
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