臺灣博碩士論文加值系統

本論文的目的為選擇可作為快遞應用之市售電動無人飛機進行性能分析研究，本研究首先利用SolidWorks軟體建立三維機體模型，為了滿足貨運艙體空間，因此依比例放大1.4倍，再用AnsysFluent對其進行氣動力分析，並探討配平狀態及穩定性，找尋巡航時的配平姿態，利用配平姿態所獲得之氣動力參數進行飛行性能分析，最後使用航程公式估算不同鋰電池容量對無人飛機航程和續航力的影響，本研究提供更深入的無人飛機性能及其影響因素，以幫助未來無人飛機設計和應用。

The purpose of this paper is to select commercially available electric unmanned aircraft for performance analysis research for courier applications. This study first uses SolidWorks software to establish a three-dimensional body model, then scales it up by 1.4 times to meet the cargo hold space requirements. Ansys Fluent is then used to perform aerodynamic analysis, exploring trim conditions and stability to find the trim posture during cruising. The aerodynamic parameters obtained from the trim posture are used to perform flight performance analysis. Finally, the range equation is employed to estimate the impact of different lithium battery capacities on the aircraft's range and endurance. This study provides a more in-depth understanding of unmanned aircraft performance and its influencing factors to assist in future unmanned aircraft design and applications.

中文摘要. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
英文摘要. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
誌謝. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
目錄. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
表目錄. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
圖目錄. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
第一章緒論. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1研究動機與目的. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2文獻回顧. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3論文架構. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
第二章系統需求與選擇. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1無人飛機系統需求. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2無人飛機機型選擇. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
第三章空氣動力分析工具. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1氣動力分析方法. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1基本原理. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.2有限體積法. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.3紊流模型. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2邊界條件. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3軟體分析環境驗證. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.1圓柱檢驗方法. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.2機翼模型檢驗方法. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
第四章空氣動力分析結果. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 CFD模擬之環境設定. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2額外模擬條件. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2.1升力與阻力模擬條件. . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2.2俯仰力矩模擬條件. . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.2.3巡航配平分析. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
iv
第五章飛行性能分析. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.1航程公式推導. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.2鋰電池容量與最大起飛重量之關係. . . . . . . . . . . . . . . . . . . . . . 49
5.3航程估算結果與討論. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
第六章結論與未來展望. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.1結論. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2未來展望. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
參考文獻. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
英文論文大綱. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

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