小型水下高速运动体自主测速基础理论研究

项目名称： 小型水下高速运动体自主测速基础理论研究

项目编号： No.51275248

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 马少杰

作者单位： 南京理工大学

项目金额： 80万元

中文摘要： 由于水下环境的限制，目前许多大气中的测速方法不能直接应用于水下。小型水下高速运动体（φ100mm×1000mm以内）为实现全航迹实时定位，迫切需要开展水下自主测速技术及相关的理论研究。针对小体积水下高速运动体自主测速技术需求，本课题提出一种基于涡轮的小型水下高速运动体自主测速方法，建立基于力矩平衡涡轮转动粘性数学模型，研究涡轮参数多变量非线性优化设计方法和高速情况下空化现象对涡轮测速的影响及消除措施。采用理论分析结合水下流体机械高速旋转两相流动流体仿真技术及高速空化水洞实验的方法，揭示涡轮转速与载体运动速度的内在关系与规律，阐明流体特性与空化对涡轮测速的影响，完成小型水下高速运动体自主测速技术的相关基础理论问题研究。本课题的完成将获得小型水下高速运动体自主测速理论数学模型，流体特性和空化对速度影响规律，及水下自主测速误差成因及消除方法，解决军事、民用领域小型水下高速运动体自主测速技术难题。

中文关键词： 水下运动体；高速；自主测速；涡轮；

英文摘要： Because of underwater environmental restrictions, at present, a lot of velocity measure methods in air can't be directly applied in underwater. To realize all the track real-time positioning, the underwater independent speed measure technology and related theory research are urgent for small underwater high-speed moving body（sizes within φ100mm×1000mm）. This topic proposes an independent speed measure method based on turbine, builds a turbine rotation sticky mathematical model, studies multivariable nonlinear optimization design method. The cavitation phenomenon influences measures precision and velocity measurement error is reduced in high-speed cases. By the theoretical analysis, two phase flow fluid simulating and high-speed cavitation water tunnel experiment,the inner relation between turbine rotation speed and carrier velocity is revealed, fluid characteristics and cavitation influence to velocity measurement is clarified and basic theories research of small underwater high-speed moving body independent velocity measure technology is completed. The mathematical theory model, the influence law of fluid characteristics and cavitation, and velocity measure error causes and eliminating methods can be obtained. the military and civil areas independent velocity measure problem for small underwater high-speed mov

英文关键词： Underwater moving body；high speed；velocity measurement；turbine；