圓柱/溝槽接觸應變分析
碩士 === 國立中正大學 === 機械工程學系暨研究所 === 101 === This paper tends to develop an equivalent experimental platform to present the complex contact behavior between the ball, screw shaft, and screw nut by a simple groove-to-roller contact model. Digital image correlation (DIC) technology is then used to measur...
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ndltd-TW-101CCU004890672015-10-13T22:24:05Z http://ndltd.ncl.edu.tw/handle/22363333735463568217 圓柱/溝槽接觸應變分析 Chen-Yu Yang 楊振宇 碩士 國立中正大學 機械工程學系暨研究所 101 This paper tends to develop an equivalent experimental platform to present the complex contact behavior between the ball, screw shaft, and screw nut by a simple groove-to-roller contact model. Digital image correlation (DIC) technology is then used to measure the strain fields of the roller under different groove shapes and loading conditions. The experimental results are further verified by finite element analyses and Hertz contact theory. The results show that when the applied load is relatively large, the contact regions of the roller show significant strain concentration phenomena and present similar strain fields as the numerical results. A 2D ball screw finite element model is then developed to obtain the contact load of each roller. The numerical results are then verified by the analytical solutions from the ball screw contact model of Mei et al. The general trends of these two solutions are similar general trends but have significant deviations between them. Pai-Chen Lin 林派臣 2013 學位論文 ; thesis 118 zh-TW |
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碩士 === 國立中正大學 === 機械工程學系暨研究所 === 101 === This paper tends to develop an equivalent experimental platform to present the complex contact behavior between the ball, screw shaft, and screw nut by a simple groove-to-roller contact model. Digital image correlation (DIC) technology is then used to measure the strain fields of the roller under different groove shapes and loading conditions. The experimental results are further verified by finite element analyses and Hertz contact theory. The results show that when the applied load is relatively large, the contact regions of the roller show significant strain concentration phenomena and present similar strain fields as the numerical results. A 2D ball screw finite element model is then developed to obtain the contact load of each roller. The numerical results are then verified by the analytical solutions from the ball screw contact model of Mei et al. The general trends of these two solutions are similar general trends but have significant deviations between them.
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Pai-Chen Lin |
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Pai-Chen Lin Chen-Yu Yang 楊振宇 |
author |
Chen-Yu Yang 楊振宇 |
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Chen-Yu Yang 楊振宇 圓柱/溝槽接觸應變分析 |
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Chen-Yu Yang |
title |
圓柱/溝槽接觸應變分析 |
title_short |
圓柱/溝槽接觸應變分析 |
title_full |
圓柱/溝槽接觸應變分析 |
title_fullStr |
圓柱/溝槽接觸應變分析 |
title_full_unstemmed |
圓柱/溝槽接觸應變分析 |
title_sort |
圓柱/溝槽接觸應變分析 |
publishDate |
2013 |
url |
http://ndltd.ncl.edu.tw/handle/22363333735463568217 |
work_keys_str_mv |
AT chenyuyang yuánzhùgōucáojiēchùyīngbiànfēnxī AT yángzhènyǔ yuánzhùgōucáojiēchùyīngbiànfēnxī |
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1718075553181859840 |