| 研究生: |
陳坤元 Chen, Kuen-Yuan |
|---|---|
| 論文名稱: |
二維滾動接觸問題之數值分析 Numerical Analysis of Two-dimensional Rolling Contact Problems |
| 指導教授: |
林育芸
Lin, Yu-Yun |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2009 |
| 畢業學年度: | 98 |
| 語文別: | 中文 |
| 論文頁數: | 78 |
| 中文關鍵詞: | 滾動接觸 、有限元素法 、蠕變比 |
| 外文關鍵詞: | rolling contact, finite element method, creep ratio |
| 相關次數: | 點閱:107 下載:2 |
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本研究主要以有限元素法探討彈性體之滾壓接觸行為;其中包括兩種情形: 一是彈性圓柱在剛性平面上的滾壓接觸,另一為剛性圓柱在有限厚度彈性層上的滾壓接觸。本研究假設滾動速度為常數,因此滾壓接觸產生之現象在任何瞬時皆相同,利用靜態分析探討接觸面的應力場分佈,進而得知接觸面間可能產生相對滑動的範圍。並討論物體間的接觸摩擦條件對結果的影響,包含兩物體間滾壓接觸的蠕變比(creep ratio)以及施加於圓柱體上的轉動彎矩。預期結果有助於工業上的應用。
We studied in detail the rolling contact between elastic bodies using finite element method. There are two cases discussed in this thesis, one is the rolling contact of an elastic cylinder on a rigid surface, and the other is that of a rigid cylinder on an elastic finite layer. This research assumed that the rolling speed is constant so that the behavior of rolling contact is identical at any instant time. Therefore, the stress field within the contact region can be analyzed using static analysis. Furthermore, the range of slip zone on the contact between two bodies can be obtained. We also discussed the effects of friction condition in the contact region on the results, including the creep ratio caused by the rolling contact between two bodies and the rotating moment applied on the cylinder. We expect that the results will be helpful to industrial applications.
[1] H.Hertz, “On the contact of elastic solids”, J. reine und angewandte Mathematik, Vol.92, pp.156-171 (1882).
[2] R. H. Bentall, K. L. Johnson, “Slip in the rolling contact of two dissimilar elastic rollers”, International Journal of Mechanical Sciences, Vol.9, pp.389-404 (1967).
[3] R. H. Bentall, K. L. Johnson, “An elastic strip in plane rolling contact”, International Journal of Mechanical Sciences, Vol.10, pp.637-663 (1968).
[4] D. Nowell, D. A. Hills, “Tractive rolling of tyred cylinders”, International Journal of Mechanical Sciences, Vol.30, pp.945-957 (1988).
[5] K. L. Johnson, Contact Mechanics, Cambridge University Press (1985).
[6] ABAQUS 6.6 User’s Manual