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題 名 | A Thermoelastic Analysis of a Steady-state Sliding Contact for Nonconforming Bodies=非相似體之穩態滑動接觸熱彈性分析 |
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作 者 | 陳俊達; 劉岳承; | 書刊名 | 大葉學報 |
卷 期 | 10:1 2001.06[民90.06] |
頁 次 | 頁69-76 |
分類號 | 446 |
關鍵詞 | 穩態; 熱彈性; 非相似; 滑動接觸; Steady-state; Thermoelastic; Nonconforming; Sliding contact; |
語 文 | 英文(English) |
中文摘要 | 本論文主要探討圓柱滑動接觸之穩態熱彈性問題,因為接觸問題時常出現在許多機械系統中,像滾子軸承,軌道車輛,及研磨加工等。當圓柱在平面上滑動時,因受摩擦而會產生摩擦熱,並導致熱應力發生,經常會使得材料產生破裂或塑性變形,文中所建立之圓柱滑動接觸模型,事實上可合適地模擬系統之接觸現象。 迥異於一般求解時所假設之接觸應力為赫玆分佈,本文使用simply-discretized method 及functional regulation來求得接觸應力與溫度場之數值解,結果與預期在未變形時的接觸點有最大應力及溫度相一致。藉由本文所建立之理論分析,可提供相關接觸介面之應力場與溫度場分佈,並可作為實驗驗證之分析。 |
英文摘要 | Contact problems always exist in mechanical systems such as roller bearings, railway wheels, grinding wheels, etc. In this study, a steady-state thermoelastic analysis is considered for a cylindrical sliding contact which can be used to model many systems. For the contact problems, heat is generated from friction between the cylinder and the semi-infinite plane, which is assumed to be rigid and insulated. Rather than using a presumed Hertzian pressure distribution, numerical solutions are obtained by using a simply-discretized method and functional regulation. As predicted, the results indicate that the maximum contact pressure and temperature are generated at the undeformed contact point. |
本系統中英文摘要資訊取自各篇刊載內容。