Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane
碩士 === 國立中興大學 === 機械工程學系 === 85 === In the present paper, the topography of rough surface is simulated by using thefractal geometry. The mathematically created rough surface is brought in contact with a flat surface under a normal loading. the relationshi...
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ndltd-TW-085NCHU04890132015-10-13T12:15:17Z http://ndltd.ncl.edu.tw/handle/66498905238345447590 Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane 以Fractal模擬之粗糙面與平板間之實際接觸面積及負荷之分析 Shyy, Jaan Horng 史展宏 碩士 國立中興大學 機械工程學系 85 In the present paper, the topography of rough surface is simulated by using thefractal geometry. The mathematically created rough surface is brought in contact with a flat surface under a normal loading. the relationship of real contact area versus the contact loading was then investigated.In general, the governing parameters of the fractal geometry,i.e., D1,A1 and Wcare obained from the power spectrum of the rough surface being simulated. Thereal contact area and contact loading are calculated by virtue of the Hertziantheory. The criterion for the contact asperity being elastic or plastic is provided.It is found that the height distribution of the rough surface created by thefractal geometry has a random nature which satisfiesthe normal distribution. Variation in the parameter D1 is the primary role to simulate the rough surface. Due to plastic deformation, the rough surface creates rapidly the conatct area under loading. Constant real contact pressure, which is larger fora rough surface, is obained for every contact surfaces. You H. I. 游憲一 1997 學位論文 ; thesis 66 zh-TW |
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zh-TW |
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碩士 === 國立中興大學 === 機械工程學系 === 85 === In the present paper, the topography of rough surface is
simulated by using thefractal geometry. The mathematically
created rough surface is brought in contact with a flat surface
under a normal loading. the relationship of real contact area
versus the contact loading was then investigated.In general, the
governing parameters of the fractal geometry,i.e., D1,A1 and
Wcare obained from the power spectrum of the rough surface being
simulated. Thereal contact area and contact loading are
calculated by virtue of the Hertziantheory. The criterion for
the contact asperity being elastic or plastic is provided.It is
found that the height distribution of the rough surface created
by thefractal geometry has a random nature which satisfiesthe
normal distribution. Variation in the parameter D1 is the
primary role to simulate the rough surface. Due to plastic
deformation, the rough surface creates rapidly the conatct area
under loading. Constant real contact pressure, which is larger
fora rough surface, is obained for every contact surfaces.
|
author2 |
You H. I. |
author_facet |
You H. I. Shyy, Jaan Horng 史展宏 |
author |
Shyy, Jaan Horng 史展宏 |
spellingShingle |
Shyy, Jaan Horng 史展宏 Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane |
author_sort |
Shyy, Jaan Horng |
title |
Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane |
title_short |
Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane |
title_full |
Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane |
title_fullStr |
Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane |
title_full_unstemmed |
Analysis of Real Contact Area and Contact Loading between a Fractal Rough Surface and a Flat Plane |
title_sort |
analysis of real contact area and contact loading between a fractal rough surface and a flat plane |
publishDate |
1997 |
url |
http://ndltd.ncl.edu.tw/handle/66498905238345447590 |
work_keys_str_mv |
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