航空發動機齒輪箱傳動系統之強度分析與改善

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姓名

張育軒(Yu-Hsuan Chang) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

航空發動機齒輪箱傳動系統之強度分析與改善
(Analysis and Improvement on Structure Strength of Aircraft Engine Gearbox)

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摘要(中)

在航空發電機組中，齒輪箱系統是最重要的部件。齒輪傳動是機械傳動中應用最廣的一種傳動形式。航空發動機齒輪箱系統對於傳動性能要求很高，有必要對其精確度、壽命做分析，以改善設計。本文基於齒輪設計軟體KISSsoft與機械系統設計模組KISSsys建立完整發動機齒輪箱系統。分析齒輪強度、各齒輪轉軸危險截面強度安全因子、轉軸撓度、轉軸彎曲偏轉角以及轉軸扭轉角，評估這些指標是否符合其廠商要求，並給予合理改善建議。本研究後續建立航空齒輪箱多體動力學(Multi-body Dynamics, MBD)分析模型，基於齒輪嚙合接觸剛度，以Huston有限軸段理論研究傳動軸彈性變形對於齒輪系統動態響應的影響，更探討齒輪經由齒廓修形前和修形後齒輪傳動系統之齒輪嚙合接觸力、質心加速度、傳動誤差以及軸心位移，以改善航空齒輪箱之動態特性。

摘要(英)

In the gearbox for aircraft engine, gear drive is one of the most widely used forms of transmission in mechanical transmission. Aircraft engine gearbox requires high transmission accuracy performance. It is necessary to analyze the accuracy and service life to improve the design. Thus, this study aims to build a complete engine gearbox system based on the gear design software KISSsoft and the mechanical system design module KISSsys. By analyzing and evaluating whether the indictions such as the gear strength, the strength safety factor of the dangerous section of each gear shaft, the shaft deflection, the shaft deflection angle, and the shaft torsion angle, have met the requirements of the manufacturer, the thesis provides suggestions for improvement. This research is building a Multi-body Dynamics (MBD) analysis model of the gearbox for aircraft engine, which based on the gear meshing contact stiffness and the Huston finite segment theory is used to study the influence of the elastic deformation of the transmission shaft on the dynamic response of the gear system. The gear meshing contact force, centroid acceleration, transmission error, and axis center of the gear transmission system before and after the gear profile modification are discussed to improve the dynamic characteristics of the aircraft engine gearbox.

關鍵字(中)

★ 發動機齒輪箱
★ 強度分析
★ 多體動力學
★ 有限軸段
★ 動態響應

關鍵字(英)

★ engine gearbox
★ strength analysis
★ multi-body dynamics (MBD)
★ finite segment method
★ dynamic response

論文目次

摘要 I
ABSTRACT Ⅱ
謝誌 Ⅳ
目錄 Ⅴ
圖目錄 Ⅶ
表目錄 Ⅹ
符號對照表 Ⅻ
第1章緒論 1
1-1 研究背景 1
1-2 文獻回顧 2
1-3 研究動機與目的 5
1-4 研究架構 6
第2章齒輪箱強度分析模型之建立 8
2-1 齒輪設計軟體簡介及齒輪箱系統設計流程 8
2-2 齒輪箱傳動系統分析模型之建立 12
第3章齒輪箱多體動力學模型之建立 16
3-1 材料參數、轉速、給定負載及拘束條件設定 17
3-2 MSC.ADAMS齒輪接觸參數 19
3-3 MSC.ADAMS Bushing軸套力介紹 24
3-4 求解器之選用 28
第4章齒輪箱強度分析與改善 30
4-1 齒輪對負載分析 30
4-1-1 齒面接觸應力分析 31
4-1-2 齒輪傳動誤差分析 36
4-2 軸強度與剛度分析 39
4-3 改善後齒輪箱系統齒輪對之強度分析 48
4-3-1 改善後齒面接觸應力分析 50
4-3-2 改善後齒輪傳動誤差分析 58
4-4 改善後軸與軸承分析 63
4-5 本章結論 67
第5章齒輪箱多體動力學模型模擬分析與探討 69
5-1 探討齒輪軸變形效應對齒輪接觸力之影響 70
5-2 探討齒輪軸變形效應對齒輪質心加速度之影響 73
5-3 探討齒輪軸變形效應對傳動誤差之影響 75
5-4 探討齒輪軸變形效應對軸心位移之影響 77
5-5 本章結論 79
第6章總結與未來展望 80
6-1 總結 80
6-2 未來展望 81
附錄ㄧ齒輪箱系統工作參數設定表 83
附錄二軸承型錄表 85
附錄三軸變形量數值表 90
附錄四齒輪軸承計算 91
附錄五航空齒輪箱載荷譜 93
參考文獻 94
作者介紹 97

參考文獻

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指導教授

吳育仁(Yu-Ren Wu)

審核日期

2021-1-29

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