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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/27132完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 蘇侃 | |
| dc.contributor.author | Yu-Siang Gao | en |
| dc.contributor.author | 高裕翔 | zh_TW |
| dc.date.accessioned | 2021-06-12T17:56:06Z | - |
| dc.date.available | 2008-02-18 | |
| dc.date.copyright | 2008-02-18 | |
| dc.date.issued | 2008 | |
| dc.date.submitted | 2008-02-01 | |
| dc.identifier.citation | 1. Kirk, R. G. and Gunter , E. J. ' transient journal bearing analysis' NASA Report No. CR-149 1970.
2. Kim, J. , Palazzolo, A., and Gadangi, R. “Dynamic characteristics of TEHD tilt pad journal bearing simulation including multiple mode pad flexibility model.” ASME, v 117, n 1, Jan, 1995, p 123-135 3. So, H. and. Chang, T. S. “Characteristics of a Hybrid Journal Bearing with One Recess Part 2: Thermal Analysis”, Tribology International, February 1986, Vol. 19, No. 1, pp.11-18. 4. So, H. and. Chang, T. S. “Characteristics of a Hybrid Journal Bearing with One Recess Part 1: Dynamic Considerations”, Tribology International, December 1986, Vol. 18, No. 6, pp.331-339. 5. So, H. and. Chang, T. S. “Characteristics of a Hybrid Journal Bearing with One Recess Part 2: Thermal Analysis”, Tribology International, February 1986, Vol. 19, No. 1, pp.11-18. 6. So, H. and. Chang, T. S. “Characteristic of an oil squeeze film” ASME J. oF Lub.Tech .Vol.104 1982 7. Heller, S. and Shapiro, W. “A numerical Solution for the incompressible hybrid journal bearing with Cavitation” ASME J. of Lub ,Tech.1969. 8. Fatu, A. , Hajjam, M. ,Bonneau,D. ” A New Model of Thermoelastohydrodynamic Lubrication in Dynamically Loaded Journal Bearings” JANUARY 2006, Vol. 128 / 95. 9. Lahmar, M., Haddad, A., D. “An optimised short bearing theory for nonlinear dynamic analysis of turbulent journal Bearings” Eur. J. Mech. A/Solids 19 (2000) 151–177 10. McCallion ,h. ,Yousif,F. and Lloyd,T. “The Analysis of Thermal Effect in a Full journal Bearing” ,”. Journal of Lubrication Techology,Trans .ASME, Vol.92,1970 pp.578-587. 11. Majumdar ,B.C. “The Thermohydrodynamic Solution of oil Joutnal Bearing” , wear ,Vol.31 ,975, pp.287-294 12. Gross, W.A.. (Editor) , Fluid Film Lubrication , 2nd Edition , Ellis Horwood Limited (England) 1976, p .17. 13. Schlichting,H .“Boundary Layer Theory”, 1979. 14. Cameron, A. “Basic Lubrication Theory, 2nd edition”, Ellis Horwood Limited (England), 1976 15 Burden, R. L. “Numerical analysis, fifth edition” | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/27132 | - |
| dc.description.abstract | 本文分析軸頸軸承在交變負荷下的運動軌跡,並考慮了溫度方程式、雷諾方程式以及運動方程式。利用有限差分法、四階朗基-庫特法解出共偶的此三個方程式,以機車引擎曲軸軸承作為分析的資料,而汽缸爆炸的衝擊力做為分析的交變負荷,最後分析的結果顯示:在同一爆炸週期中,可獲得軸心之穩定軌跡,同時顯示軸承動態之負載能力遠大於靜態。 | zh_TW |
| dc.description.abstract | This thesis analyzes dynamic orbits of journal bearings by using adiabatic equation , Renold’s equation , and motion equation .By using finite difference method , 4th order Runge-Kutta method of numerical analysis there three couple equations can be solve.
Taking a journal bearing employed in motorcycle as an example. The results show that: A steady orbit was obtained for an explosion cycle and that the dynamic loading capacity of the bearing was much higher than the steady one. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-12T17:56:06Z (GMT). No. of bitstreams: 1 ntu-97-R94522530-1.pdf: 5759946 bytes, checksum: 49309204ab95b9e6cee82799fb9c901a (MD5) Previous issue date: 2008 | en |
| dc.description.tableofcontents | 目錄
中文摘要…………………………………………………………………………I 英文摘要………………………………………………………………………II 目錄………………………………………………………………………………III 符號說明…………………………………………………………………………IV 第一章 序論…………………………………………………………………1 1-1 前言…………………………………………………………………………1 1-2 研究相關文獻……………………………………………………………2 1-3 研究方向……………………………………………………………3 第二章 理論分析……………………………………………………………4 2-1 前言 ……………………………………………………………4 2-2 統御方程式……………………………………………………………4 2-2.1 基本軸承幾推導……………………………………………4 2-2.2 基本方程式與假設……………………………………………6 2-2.3 雷諾方程式…………………………………………………7 2-2.4 絕熱方程式………………………………………………8 2-2.5 牛頓運動方程式…………………………………………………9 2-2.6 無因次化……………………………………………………10 2-2.7 邊界條件………………………………………………………11 第三章 數值分析……………………………………………………………12 3-1 有限差分法………………………………………………………12 3-2 空蝕區(cavitation) ………………………………………………15 3-3 四階朗基-庫特法(4th order Runge-Kutta method) ……………15 3-3.1 起始條件…………………………………………17 3-3.2 演算法…………………………………………17 3-4 數值求解流程………………………………………………………18 第四章 結果與討論………………………………………………………20 4-1 穩態結果分析…………………………………………………………………20 4-1.1 壓力分布………………………………………………………………20 4-1.2 溫度分布………………………………………………………………21 4-2 軸心穩態過渡行為分析 ……………………………………………21 4-3 交變負荷動態結果分析 ………………………………………………22 第五章 結論與未來研究方向………………………………………………23 參考文獻……………………………………………………………………………24 表4-1 不同轉速下動態分析之條件………………………………………………26 表4-2不同偏心比下之負荷…………………………………………………27 表4-3穩定狀態下不同轉速下之負荷………………………………27 圖2-1軸頸軸承幾何圖………………………………………………………28 圖2-2軸承面展開圖……………………………………………………………29 圖2-3工研院模擬壓縮比為10.3:1的引擎在各種轉速下的汽缸壓力…………29 圖3-1空蝕區於格點上壓力分布示意圖…………………………………………30 圖3-2單一控容右下角格點壓力為零……………………………………………30 圖 3-3單一控容右下角與右上角格點壓力為零…………………………………31 圖 3-4 單一控容左下角與右下角格點壓力為零………………………………31 圖 3-5 單一控容左下角、右下角與右上角格點壓力為零………………………32 圖3-6單一控容全部格點壓力為零……………………………………………32 圖3-7 數值計算流程……………………………………………………………33 圖 4-1 不同偏心比下之負荷……………………………………………………33 圖 4-2不同轉速下之負荷………………………………………………………34 圖 4-3轉速與姿態角…………………………………………………………34 圖4-4偏心比與姿態角………………………………………………………35 圖4-5偏心比與蘇氏變數…………………………………………………35 圖4-6轉速與旁側漏油………………………………………………………36 圖4-7偏心比與旁側漏油……………………………………………………36 圖4-8 轉速1200rpm偏心比 0.7 立體圖………………………………37 圖4-9轉速1200rpm偏心比 0.7 等高線圖……………………………38 圖4-10 轉速 1200rpm 偏心比0.8 立體圖…………………………………39 圖4-11轉速1200rpm偏心比0.8 等高線圖………………………………40 圖4-12轉速1200rpm偏心比0.9立體圖…………………………………41 圖4-13 轉速1200rpm偏心比0.9 等高線圖………………………………42 圖4-14轉速4000rpm偏心比0.7 立體圖…………………………………43 圖4-15轉速4000rpm偏心比0.7等高線圖………………………………44 圖4-16轉速4000rpm偏心比0.8立體圖…………………………………45 圖4-17轉速4000rpm偏心比0.8等高線圖………………………………46 圖4-18轉速4000rpm偏心比0.9立體圖…………………………………47 圖4-19轉速4000rpm偏心比0.9等高線圖………………………………48 圖4-20轉速 7000rpm 偏心比0.7立體圖 …………………………………49 圖4-21轉速 7000rpm 偏心比0.7等高線圖 ………………………………50 圖4-22轉速7000rpm偏心比0.8立體圖…………………………………51 圖4-23 轉速7000rpm偏心比0.8等高線圖………………………………52 圖4-24轉速7000rpm偏心比0.9立體圖…………………………………53 圖4-25轉速7000rpm偏心比0.9等高線圖………………………………54 圖4-26供油孔非橫向油溝之示意圖……………………………………………55 圖4-27 7000rpm 軸心穩態過渡行為分(500N->2000N)…………………………56 圖4-28 7000rpm曲軸五個週期(20π)之軸心路徑圖…………………………57 圖4-29 6000rpm曲軸五個週期(20π)之軸心路徑圖…………………………58 圖4-30 5000rpm曲軸五個週期(20π)之軸心路徑圖…………………………59 圖4-31 4000rpm曲軸五個週期(20π)之軸心路徑圖…………………………60 圖4-32 3000rpm曲軸五個週期(20π)之軸心路徑圖…………………………61 圖4-33 2000rpm曲軸五個週期(20π)之軸心路徑圖…………………………62 圖4-34 1200rpm曲軸五個週期(20π)之軸心路徑圖…………………………63 | |
| dc.language.iso | zh-TW | |
| dc.subject | 交變負荷 | zh_TW |
| dc.subject | 軸頸軸承 | zh_TW |
| dc.subject | 擠壓膜項 | zh_TW |
| dc.subject | squeezed film term | en |
| dc.subject | varing loading | en |
| dc.subject | journal bearing | en |
| dc.title | 考慮交變負荷和擠壓膜之軸頸軸承分析 | zh_TW |
| dc.title | Analysis of journal bearings under consideration of
varying loading and squeezed film | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 96-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林原慶,胡致中 | |
| dc.subject.keyword | 軸頸軸承,交變負荷,擠壓膜項, | zh_TW |
| dc.subject.keyword | journal bearing,varing loading,squeezed film term, | en |
| dc.relation.page | 63 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2008-02-01 | |
| 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 | |
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