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題 名 | 奈米磨粒在工件運動所衍生之現象的探討:幾何形狀與磨粒-工件間吸附力之效應=A Study on Phenomena Induced by Nano-Particle Motion Upon Work Surface: Effects of Particle Rigidity, Shape and Adhesion |
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作 者 | 章少衡; 鄭智仁; 洪篤傑; 蘇耀藤; | 書刊名 | 黃埔學報 |
卷 期 | 53(工程科學類) 2007.10[民96.10] |
頁 次 | 頁25-31 |
分類號 | 446.8956 |
關鍵詞 | 分子動力學; 變質層; 磨粒特性; Molecular dynamics; Damaged layer; particle property; |
語 文 | 中文(Chinese) |
中文摘要 | 本文使用分子動力學(Molecular Dynamics),研究奈米磨粒在工件上運動所造成的現象。此研究的主要控制變因為磨粒的剛性與形狀。觀察的對象則是變質層深度,衍生粗度及材料移除量。研究顯示,在磨粒作純滾動運動時,剛性對變質層深的效用不大。但對滑動磨粒而言,小的剛性可以使變質層深度較淺。然而剛性太低時,卻會使磨粒無法保持外形完整,以致於增加衍生粗度及變質層深度。在不同磨粒外型的模擬方面,若磨粒為純滑動,且吸附係數不大時,大的磨粒前端角度將導致較深的變質層。另外,如果磨粒與工件間的接觸面積增大時,變質層的範圍也會加大。 |
英文摘要 | The study examined the phenomena induced by nano-particle traversed upon the smooth work piece via molecular dynamics simulation method. The phenomena included the damaged layer, induced surface roughness and the material removal. The particle would move in pure-sliding or rolling manners. In addition, the adhesion between particle and work were parameters, too. Under these conditions, the study evaluated the effects of the stiffness and the shape of the particle on stated phenomena. The study showed the stiffness had little effect on the depth of the damaged layer while the particle rolled on the surface. The damaged layer could be shallower if the particle, with little stiffness, slid on the work. However, too lower stiffness of particle could not maintain particle’s integrity. Thus, the induced surface roughness and the depth of the damaged layer increased. As to the effect of the particle shape, if the particle rolled and the adhesion between particle and work was low, larger front angle of particle induced deeper damaged layer. The larger contact area between particle and work would result larger damaged layer. |
本系統中英文摘要資訊取自各篇刊載內容。