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System Design and Performance Analysis of Hybrid-driven Underwater Glider

Author: WuJianGuo
Tutor: ChenChaoYingï¼›WangShuXin
School: Tianjin University
Course: Mechanical and Electronic Engineering
Keywords: Hybrid drive underwater gliders Underwater Glider Kinetic model Buoyancy-driven efficiency Gliding efficiency of navigation Motion Stability Computational Fluid Dynamics
CLC: U674.941
Type: PhD thesis
Year: 2010
Downloads: 236
Quote: 7
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Abstract


Unmanned underwater glider (Autonomous Underwater Glider, AUG) is a buoyancy-driven new unmanned underwater vehicle, have endurance, low noise, and low cost, a range in the order of thousands of kilometers; However, the buoyancy-driven underwater glider only sailing a zigzag trajectory, speed is slow. Autonomous Underwater Vehicle (Autonomous Underwater Vehicle, AUV) generally use the propeller-driven, high mobility and faster speed; AUV flight are generally very short, on the order of a few hundred kilometers. AUG and AUV advantages of both rolled into one, development the One with mix of buoyancy-driven propeller drive system driven underwater glider Swallow (PETREL). Key issues encountered in the development process, the hybrid drive underwater gliders mechanical system solutions, and detailed design of the overall system, the use of computational fluid dynamics (Computational Fluid Dynamics, CFD) analysis of the water of the main components of hydrodynamic dynamic characteristics; establish the general kinematic equations, based on study characteristics and the dynamic stability of the balance in the vertical plane. The waters trials to achieve a desired design features, to verify the correctness of the analysis and simulation of this article. This paper mainly research and innovation: 1. Research and design of the hybrid drive underwater glider prototype PETREL. Achieve the same craft with buoyancy driven by the straight line sailing and motor gliders and propeller-driven navigation function of the target. Established mixed-driven underwater glider dynamic model and CFD method for the characterization of the hybrid drive characteristics of underwater gliders hydrodynamic parameters. Matlab prepared using the visual dynamics simulation program assessment and design of aircraft parameters. CFD method PETREL hydrodynamic characteristics of the main components of the analysis and optimization of the design. The analysis results for the wings, rudder design the hydrodynamic basis; given hydrodynamic characteristics of the propeller shroud and the whole flow field. 4 proposed the underwater glider buoyancy-driven efficiency, as well as the concept of gliding efficiency of navigation, and its more detailed analysis of the calculation. Reveal factors affect the driving force driving efficiency and gliding efficiency of navigation, and provide theoretical guidance for high-performance glider design.

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CLC: > Transportation > Waterway transport > Marine Engineering > Various types of vessels > Ships: navigation state points > Dive boat
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