| 研究生: |
劉承諺 Liu, Chen-Yen |
|---|---|
| 論文名稱: |
渦流陣列夾持器動態分析及設計 Dynamic Performance Analysis and Design of Vortex Array Grippers |
| 指導教授: |
陳介力
Chen, Chieh-Li |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 航空太空工程學系 Department of Aeronautics & Astronautics |
| 論文出版年: | 2021 |
| 畢業學年度: | 109 |
| 語文別: | 中文 |
| 論文頁數: | 56 |
| 中文關鍵詞: | 渦流夾持器 、無接觸 、計算流體力學 、陣列夾持器 、升力 |
| 外文關鍵詞: | Vortex gripper, Non-contact, Computational fluid dynamics, Vortex array grippers, Lifting force |
| 相關次數: | 點閱:73 下載:0 |
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本文以雷諾應力傳遞紊流模型來分析非接觸式渦流夾持器的氣動升力及工件表面上的壓力分佈,並進行陣列渦流夾持的性能分析。研究首先針對單一夾持器在幾何參數變動下進行升力分析,最後選擇其中一組升力性能較佳的夾持器幾何參數作為陣列夾持器性能分析之基礎。
將參數確定後之單一夾持器進行兩個與四個的排列建構組合,由於隨著夾持器渦流室數量的增加,底部夾持面的涵蓋面積也隨之增大,因此藉由單位面積升力作為分析各排列情形與間距大小的影響指標(performance index)。雙陣列夾持器在渦流室間距24mm、30mm與36mm下數值模擬各種不同排列的升力,研究各個供氣排列方式的優缺點,並觀察氣流交互作用形成的正壓對升力的影響。在24mm的間距下,不同排列方式的單位面積升力性能比皆在10%內。當彼此間距增大後,雖然個別夾持器升力會上升,但是涵蓋面積也增加而使單位面積升力下降,造成最大有50%的性能比。四陣列夾持器除了分析與雙陣列夾持器相同的目標外,還探討在渦流夾持器上設置洩壓氣孔後對升力產生的變化。當有洩壓孔時陣列夾持器之單位面積升力可增加10%~30%。透過分析洩壓孔對升力的影響,可以得知設置一定大小與數量的洩壓孔能有效提升陣列夾持器之單位面積升力。
This paper mainly discusses the computational fluid dynamics method with the Reynolds stress transport turbulence model will be applied to analyses the pneumatic lifting force of noncontact vortex grippers and the pressure distribution on the surface of a work piece. The relationships between the lifting force and several geometry parameters are studied for determine the geometry parameters of vortex gripper which generates lifting force per unit area.
After defining the parameters, a single vortex gripper is combined with two and four groups. As the number of grippers increases, the area of the bottom surface also increases. Therefore, by analyzing lifting force per unit area, discuss the influence of each arrangement and gap clearance. For 2 vortex array grippers, simulate the lifting force of various arrangement at distance from each vortex gripper L is 24mm, 30mm, and 36 mm, then studies the advantages and disadvantages of all kinds of air supply methods. At a distance of 24mm from each vortex gripper, the performance of lifting force per unit area is less than 10%. The lifting force of individual vortex grippers will increase as the distance is added. However, the increased area will also lead to lifting force per unit area greatly reducing result in a performance reduction of 50%.
In addition to analyzing the same target outcomes as 2 vortex array grippers, study the changes in the lifting after setting exhaust vents for 2 by 2 vortex array grippers. When there are exhaust vents on 2 by 2 vortex array grippers, the performance of lifting force per unit area could be increased by 10%~30%. By analyzing the influence of exhaust vents for the lifting force, it can be know that setting a certain size and number of exhaust vents is able to effectively increase lifting force per unit area of the vortex array grippers.
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校內:2026-08-17公開