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系統識別號 U0026-0908201817073100
論文名稱(中文) 油膜軸承應用於人字齒輪轉子系統之動態分析
論文名稱(英文) Dynamic Analysis of a Double-Helical Geared Rotor System with Oil-Film Bearing
校院名稱 成功大學
系所名稱(中) 航空太空工程學系
系所名稱(英) Department of Aeronautics & Astronautics
學年度 106
學期 2
出版年 107
研究生(中文) 楊宗憲
研究生(英文) Tsung-Hsien Yang
學號 P46051204
學位類別 碩士
語文別 中文
論文頁數 74頁
口試委員 指導教授-崔兆棠
口試委員-江達雲
口試委員-周玉端
口試委員-陳膺中
中文關鍵字 油膜軸承  人字齒輪  有限元素法 
英文關鍵字 Oil-film bearing  Double-helical gear  Finite element method 
學科別分類
中文摘要 本文以有限元素法 (Finite Element Method)模擬油膜軸承應用於人字齒輪轉子系統之動態行為。本文系統的轉軸為Timoshenko樑,使用Timoshenko樑需要考慮剪應力及轉動慣性;轉盤假設為剛體,並考慮其陀螺效應及質量偏心;軸承以油膜軸承來模擬,在不同的轉速下會有不同的勁度係數與阻尼係數;齒輪對視為線性彈簧及阻尼器沿著壓力線連接的兩個剛性轉盤來模擬。本文探討不同參數對於油膜軸承應用於人字齒輪轉子系統之差異。本文改變齒輪螺旋角度、齒輪嚙合勁度係數及齒輪置放於不同的節點,並探討對系統自然頻率、側向及軸向響應的影響。從結果得知,改變齒輪上的變數對系統之側向-扭轉耦合模態影響較大。
英文摘要 In this thesis, dynamic behavior of a double-helical geared rotor system with oil-film bearing is studied by using the finite element method. Rotating shafts are modeled as Timoshenko beam, which includes shear deformation and the effect of rotary inertia. Bearings are modeled as oil-film bearings whose stiffness and damping coefficients vary as the rotating speed changes. Disks are assumed to be rigid, and their gyroscopic effect is taken into account. The gear mesh is modeled as a pair of rigid disks connected with spring-damped set along the pressure line. In this thesis, effects of parameters, such as helical angle, gear mesh stiffness, and different location of gears on natural frequency, lateral response, and axial response of the system are studied. Numerical results show that the resonant response in axial direction of the double-helical geared rotor system with oil-film bearing is small. By calculating the response of different nodes, it can be found that the node is closer to the middle of the rotating shaft, the lateral response is greater, otherwise, the node is closer to the bearing position, the lateral response is smaller. As the stiffness of gear mesh increases, the resonance frequencies of the system increase on the lateral-torsional coupling modes of the system.
論文目次 摘要 ii
誌謝 vi
表目錄 ix
圖目錄 x
符號說明 xi
第一章 緒論 1
1-1前言 1
1-2文獻回顧 2
1-3研究動機與目的 6
1-4本文研究 7
第二章 系統運動方程式推導 9
2-1座標系統 9
2-2系統各單元之運動方程式 10
2-2-1轉軸 10
2-2-2轉盤 12
2-2-3軸承 14
2-2-4人字齒輪 17
2-2-5系統運動方程式 19
2-3動態特性分析 20
2-3-1自然頻率分析 20
2-3-2穩態響應分析 21
第三章 數值結果與分析討論 23
3-1程式驗證 23
3-2收斂性分析與自然頻率 24
3-3系統之模態分析及旋振速率圖 24
3-4螺旋角度之影響 25
3-5齒輪嚙合勁度係數之影響 25
3-6齒輪置於系統不同位置之不同節點分析 25
3-7不同齒輪位置對系統之影響 26
第四章 結論 27
參考文獻 28
附錄一 32
附錄二 33
附錄三 40
參考文獻 [1] Ruhl R. L., and Booker J. F., “A Finite Element Model for Distributed Parameter Turborotor System,” ASME, Journal of Engineering for Industry, Vol. 94, pp. 126-132, 1972.
[2] Nelson H. D., and McVaugh J. M., “The Dynamics of Rotor-Bearing Systems Using Finite Elements,” ASME, Journal of Engineering for Industry, Vol. 98, pp. 593-600, 1976.
[3] Nelson H. D., “A Finite Rotating Shaft Element Using Timoshenko Beam Theory,” ASME, Journal of Mechanical Design, Vol. 102, pp. 793-803, 1980.
[4] Greenhill L. M., Bickford W. B., and Nelson H. D., “A Conical Beam Finite Element for Rotor Dynamic Analysis,” ASME, Journal of Vibration Acoustics, Stress, Reliability in Design, Vol. 107, pp. 421-430, 1985.
[5] Gardner M., Myars C., Savage M., and Taylor C., “Analysis of Limit-Cycle Response in Fluid-Film Journal Bearings Using the Method of Multiple Scales,” The Quarterly Journal of Mechanics and Applied Mathematics, Vol. 38, pp. 27-45, 1985.
[6] Lin Y. H., and Lin S. C., “Optimal Weight Design of Rotor Systems with Oil-Film Bearings Subjected to Frequency Constraints,” Finite Elements in Analysis and Design, Vol. 37, pp. 777-798, 2001.
[7] Lund J. W., and Saibel E., “Oil Whirl Orbits of a Rotor in Sleeve Bearing,” ASME, Journal of Engineering for Industry, Vol. 89, pp. 813-823, 1967.
[8] Kahraman A., Ozguven H. N., Houser D. R., and Zakrajsek J. J., “Dynamic Analysis of Geared Rotors by Finite Elements,” ASME, Journal of Mechanical Design, Vol. 114, pp. 507-514, 1992.
[9] Rao J. S., Shiau T. N., and Chang J. R., “Dynamic Behavior of Geared Rotors,” ASME, Journal of Engineering for Gas Turbines and Power, Vol. 121, pp. 494-503, 1999.
[10] Choi S. T., and Mau S. Y., “Dynamic Analysis of Geared Rotor-Bearing System by the Transfer Matrix Method,” ASME, Journal of Mechanical Design, Vol. 123, pp. 562-568, 2001.
[11] Chen Y. C., Dynamic Analysis of a Geared Rotor-Bearing System, Doctoral Dissertation, National Cheng Kung University, 2014.
[12] Kahraman A., “Effect of Axial Vibrations on the Dynamics of a Helical Gear Pair,” ASME, Journal of Vibration and Acoustics, Vol. 115, pp. 33-39, 1993.
[13] Kahraman A., “Dynamic Analysis of a Multi-Mesh Helical Gear Train,” ASME, Journal of Mechanical Design, Vol. 116, pp. 706-712, 1994.
[14] Draca S., Finite Element Model of a Double-Stage Helical Gear Reduction, Doctoral Dissertation, University of Windsor, 2006.
[15] Feng K., Matsumura S., and Houjoh H., “Dynamic Behavior of Helical Gears with Effects of Shaft and Bearing Flexibilities,” Applied Mechanics and Materials, Vol. 86, pp. 26-29, 2011.
[16] Zhang Y., Wang Q., Ma H., Huang J., and Zhao C., “Dynamic Analysis of Three-Dimensional Helical Geared Rotor System with Geometric Eccentricity,” KSME, Journal of Mechanical Science and Technology, Vol. 27, pp. 3231-3242, 2013.
[17] 楊介偉, 斜齒輪應用於齒輪轉子軸承系統, 國立成功大學航空太空工程研究所碩士論文, 2015.
[18] Kang M. R., and Kahraman A., “An Experimental and Theoretical Study of the Dynamic Behavior of Double-helical Gear Sets,” Journal of Sound and Vibration, Vol. 350, pp.11-29, 2015.
[19] Yang F., Huang Q., Wang Y., and Wang J., “Research on Dynamics of Double-Mesh Helical Gear Set,” Applied Mechanics and Materials, Vol. 215-216, pp. 1021-1025, 2012.
[20] Chen S., Tang J., Li Y., and Hu Z., “Rotordynamics Analysis of a Double-Helical Gear Transmission System,” Meccanica, Vol. 51, pp. 251-268, 2016.
[21] Chang Q., Hou L., Sun Z., Wang W., and You Y., “Nonlinear Dynamic Modeling of Double Helical Gear System,” Jordan Journal of Mechanical and Industrial Engineering, Vol. 8, No. 5, pp. 289-296, 2014.
[22] 許凱甯, 人字齒輪轉子軸承系統之動態分析, 國立成功大學航空太空工程研究所碩士論文, 2016.
[23] Chen S., Tang J., “Effects of Staggering and Pitch Error on the Dynamic Response of a Double-Helical Gear Set,” Journal of Vibration and Control, Vol. 23, Issue 11, pp.1844-1856, 2017.
[24] Dong J., Wang S., Lin H., and Wang Y., “Dynamic Modeling of Double-Helical Gear with Timoshenko Beam Theory and Experiment Verification, ” Advance in Mechanical Engineering, Vol. 8, Issue 5, 2016.
[25] 黃忠立, 轉子-軸承系統在多臨界轉速限制下之輕量化設計, 國立成功大學航空太空工程研究所碩士論文, 1987.
[26] 阮競揚, 含橫向裂縫的轉子軸承系統之動態特性分析, 國立成功大學航空太空工程研究所碩士論文, 1997.
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