Strengths and weaknesses of finite element modeling deep hole drilling as compared with beam and column equations |
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Authors: | Jih-Hua Chin Shou-Der Sheu |
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Affiliation: | (1) Department of Mechanical Engineering, National Chiao Tung University, 1001 Tashue Road, Hsinchu, Taiwan, 300, Republic of China |
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Abstract: | Deep hole drilling has been studied mainly experimentally in the past. Recently, some theories using beam or column equations
have been proposed, which involved complicated mathematical efforts. This work analyzed deep hole drilling by a finite element
model (FEM). Results of modal analysis on the established FEM were compared with results from Euler beam equations. Further
analysis showed that the FEM could also predict straightness deviation as did the column equation. In addition, FEM could
analyze the effects of variable support distance which neither beam nor column equation could. Other analysis results are
also presented. The results in this study showed the strength and weakness of the FEM. |
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Keywords: | Deep hole drilling Finite element model Column Beam theory Hole straightness |
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