請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71010完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 伍次寅 | |
| dc.contributor.author | Yi-Li Chen | en |
| dc.contributor.author | 陳以理 | zh_TW |
| dc.date.accessioned | 2021-06-17T04:48:21Z | - |
| dc.date.available | 2018-08-01 | |
| dc.date.copyright | 2018-08-01 | |
| dc.date.issued | 2018 | |
| dc.date.submitted | 2018-08-01 | |
| dc.identifier.citation | [1] P. Birch, “Orbital Ring Systems and Jacob’s Ladders - I”, Journal of The British Interplanetary Society 35 (1982).
[2] P. Birch, “Orbital Ring Systems and Jacob’s Ladders - II”, Journal of The British Interplanetary Society 36 (1982). [3] P. Birch, “Orbital Ring Systems and Jacob’s Ladders - III”, Journal of The British Interplanetary Society 36 (1982). [4] D. S. S. F. de Córdoba, “The 100km Boundary for Astronautics”, Fédération Aéronautique Internationale (2004). [5] C. R. Mcinnes, “Non-Linear Dynamics of Ring World Systems”, Journal of The British Interplanetary Society 56, 308–313 (2003). [6] J. V. Breakwell, ed., The Stability of an Orbiting Ring (Jan. 1980). [7] G. Guennebaud, B. Jacob, et al., Eigen v3, http://eigen.tuxfamily.org, 2010. [8] Toyobo, Zylon (PBO Fiber) Technical Information, June 2005. [9] NASA, Shuttle Reference Manual, 1988. [10] Toray, Torayca T700S Data Sheet. [11] DuPont, Kevlar Aramid Technical Guide. [12] H. L. Frederick T. Wallenberger, James C. Watson, “Glass Fibers”, ASM International 21, 27–34 (2001). [13] Matweb, Steels, General Properties, http://www.matweb.com | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71010 | - |
| dc.description.abstract | 軌道環(Orbital Ring System)為從環狀衛星吊掛鋼索的太空平台，同太空電梯(Space Elevator)，為可不經由火箭而直達太空的登天系統。
本論文目的為分析軌道環的穩定性，將推導出描述軌道環的統御方程式，並經由線性化將其修飾、簡化成適合作穩定性分析的模式。 分析結果為：軌道環存在許多不穩定的模態，雖然理論上可透過適當的修正力穩定之，實務上提供這些修正力將挑戰制動器的極限。 相較於太空電梯，軌道環對材料的要求較為寬鬆；現今存在的許多工程材料將可勝任。 | zh_TW |
| dc.description.abstract | Orbital Ring Systems consist of a series of tethers anchored to the Earth's surface on the bottom end and hanging from a ring-shaped mass from the top end. Like the more popular space elevator systems, such systems provide access to space without the use of rockets.
This thesis is a study of the dynamic stability of such orbital ring structures. Governing equations for describing the dynamics of orbital ring structures were first formulated, then cast into a form suitable for stability analysis. It was found that many modes of instability exist for orbital ring systems. In theory, stabilizing forces can be prescribed to stabilize the ring. In practice, it was found that applying such stabilizing forces will push the boundary of what is possible with todays actuators. However, it was also found that the material requirements of orbital rings are are much less stringent than that of Space Elevators, and are well within reach of materials mass-produced today. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T04:48:21Z (GMT). No. of bitstreams: 1 ntu-107-R04522121-1.pdf: 4282208 bytes, checksum: c4adc7731da2aa1aac41f86ea6ca4a3d (MD5) Previous issue date: 2018 | en |
| dc.description.tableofcontents | 口試委員審定書 i
Acknowledgement iii 摘要 v Abstract vii 1. Introduction 1 1.1. Space Elevator 1 1.2. Orbital Ring 3 2. The Physical Model and Governing Equations 5 2.1. Basic Assumptions and Definitions 5 2.2. Governing Equations 7 2.3. Steady State Circular Orbit 8 2.4. Linearization and Nondimensionalization 9 2.5. Tensile Forces and Ring Material Model 11 2.6. Matrix Form of the Governing Equations 11 3. Qualitative Interpretations of Linearized Equations 15 3.1. Ring Mass Balance 15 3.2. Ring Momentum Balance 17 3.3. Longitudinal Travel of Tether 17 3.4. Lateral Travel of Tether 17 3.5. Radial Travel of Tether 19 4. Stabilization of Orbital Ring Systems 21 4.1. Selection of Parameters m̃ and a 21 4.2. Example: Stabilizing Y 22 4.3. Sanity Check: Keplerian Orbits 24 4.4. Orbital Ring System with no Additional Stabilization 26 4.5. Orbital Ring with Bending Restraints 29 4.6. Orbital Ring with Bending and Longitudinal Restraints 31 4.7. Orbital Ring with Bending, Longitudinal and Radial Restraints 34 4.8. Orbital Ring with Bending, Longitudinal, Radial and Speed Restraints 36 4.9. Exploration of Surrounding Values for kz, kx, vw and T0 37 5. Discussion, Conclusion and Future Work 41 5.1. Decay Constant 41 5.2. Tether Stiffness Requirements 42 5.3. Damping Coefficients 43 5.4. Bending Resistance 44 5.5. Conclusion 45 5.6. Future Work 46 A. Table of Material Properties 49 B. Governing Equations 51 B.1. Ring Mass Balance 51 B.2. Ring Momentum Balance 51 B.3. Total Momentum Balance 54 B.4. Steady State Circular Orbit 55 B.5. Linearizing and Nondimensionalization of Governing Equations 56 C. Miscellaneous Derivations 61 C.1. Material Derivative 61 C.2. Eigenvalue of the Dynamics of Y 62 C.3. Stabilization of Y 62 D.References 63 | |
| dc.language.iso | en | |
| dc.subject | 登天系統 | zh_TW |
| dc.subject | 穩定性分析 | zh_TW |
| dc.subject | 線性分析 | zh_TW |
| dc.subject | 軌道運動 | zh_TW |
| dc.subject | 軌道環 | zh_TW |
| dc.subject | 太空 | zh_TW |
| dc.subject | space | en |
| dc.subject | orbital mechanics | en |
| dc.subject | linear analysis | en |
| dc.subject | stability analysis | en |
| dc.subject | space launch system | en |
| dc.subject | orbital ring system | en |
| dc.title | 軌道環之線性穩定性分析 | zh_TW |
| dc.title | Linear Stability Analysis of an Orbital Ring System | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 106-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 盧忠仁,劉建豪 | |
| dc.subject.keyword | 軌道環,軌道運動,線性分析,穩定性分析,登天系統,太空, | zh_TW |
| dc.subject.keyword | orbital ring system,orbital mechanics,linear analysis,stability analysis,space launch system,space, | en |
| dc.relation.page | 63 | |
| dc.identifier.doi | 10.6342/NTU201802238 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2018-08-01 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-107-1.pdf 未授權公開取用 | 4.18 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。