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A Study on Design and Dynamics of Underwater Glider
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Hyeung-sik Choi | - |
| dc.contributor.author | HUANG JIAFENG | - |
| dc.date.accessioned | 2022-04-08T17:42:53Z | - |
| dc.date.available | 2022-04-08T17:42:53Z | - |
| dc.date.created | 20210311144415 | - |
| dc.date.issued | 2021 | - |
| dc.identifier.uri | http://repository.kmou.ac.kr/handle/2014.oak/12591 | - |
| dc.identifier.uri | http://kmou.dcollection.net/common/orgView/200000374878 | - |
| dc.description.abstract | Underwater Glider (UG) is a new type of underwater vehicle which has been introduced decades. Compared with the other underwater vehicles (UV), it has obvious advantages, such as small noise and strong concealment, and the function of autonomous underwater navigation. This thesis focused on the design and the vertical motion of the UG. Also the effects of the movable mass and the buoyancy engine on the gliding parameters are important issues. In order to decrease the resistance of the glider in the water, the Myring hull profile equation was designed for the streamlined cockpit, and the posture balance analysis of the UG was analyzed using Solidworks. The motion equations of the UG in the vertical plane were derived and established. The computer simulation of the UG was performed using Simulink in Matlab to analyze the influence of the movable mass and the buoyancy engine on the gliding state. The computational fluid dynamics(CFD) technique was used for analyzing the hydrodynamics of the glider, where empirical parameters of the hydrodynamic force are obtained by data fitting. | - |
| dc.description.tableofcontents | 1. Introduction 1 1.1 Literature review 2 1.2 Study purpose 6 2. Design of an underwater glider（UG） 7 2.1 Shape design of the UG 7 2.2 Detail design of hull and component units 9 2.2.1 Pressure hull design 9 2.2.2 Buoyancy engine design 11 2.2.3 The moveable mass design 14 2.3 Manufacture UG 15 2.3.1 The movable mass part 16 2.3.2 The buoyancy engine 16 2.3.3 Control unit 17 2.4 Balancing analysis 18 2.4.1 Analysis of balancing equations 18 2.4.2 Case study of posture balancing 21 2.4.3 Posture balancing due to mass distribution 25 2.5 Pressure resistance analysis 28 2.5.1 Pressure resistance analysis of body frame 28 2.5.2 Pressure resistance analysis of buoyancy engine 30 3. Dynamics analysis 32 3.1 Basic operation principle of underwater glider 32 3.2 Dynamics 33 3.2.1 The coordinate systems of UG 33 3.2.2 Motion equations of the UG 35 3.2.3 Modeling the glider motion equations in the vertical plane 44 3.2.4 Computer simulation 49 3.2.5 Added mass of the glider 58 4. Hydrodynamics analysis of the UG 60 4.1 Hydrodynamics modeling 60 4.2 Calculation domain and generate mesh 60 4.3 Computer simulation 62 4.3.1 Simulation conditions 62 4.3.2 Computer simulation and results 65 5. Conclusion 70 Reference 72 | - |
| dc.language | eng | - |
| dc.publisher | 한국해양대학교 대학원 | - |
| dc.rights | 한국해양대학교 논문은 저작권에 의해 보호받습니다. | - |
| dc.title | A Study on Design and Dynamics of Underwater Glider | - |
| dc.title.alternative | 수중 글라이더의 설계 및 역학에 대한 연구 | - |
| dc.type | Dissertation | - |
| dc.date.awarded | 2021. 2 | - |
| dc.embargo.liftdate | 2021-03-11 | - |
| dc.contributor.department | 대학원 기계공학과 | - |
| dc.contributor.affiliation | 한국해양대학교 대학원 기계공학과 | - |
| dc.description.degree | Master | - |
| dc.identifier.bibliographicCitation | [1]HUANG JIAFENG, “A Study on Design and Dynamics of Underwater Glider,” 한국해양대학교 대학원, 2021. | - |
| dc.identifier.holdings | 000000001979▲200000001935▲200000374878▲ | - |
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