Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2551
標題: 微定位平台之設計與分析
Design and Analysis of A Micro-Positioning Stage
作者: 陳燕銘
Chen, Yan-Ming
關鍵字: 微定位平台;micro-precision positioning stage;撓性結構;一體機構;壓電致動器;flexural structure;monolithic mechanism;piezoelectric actuator
出版社: 機械工程學系所
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摘要: 
本研究之目的為對精密微定位平台進行設計與研究,以期設計出一六自由度之微定位平台其各線性軸向最大行程能達到10μm,各軸旋轉量能達到50 μrad以上,以及希望平台大小能小於200mm×200mm×50mm。平台採用壓電材料為驅動源,並配合撓性結構設計來達到奈米定位效果,整體設計乃為一體機構、無需組裝並且為同一平面。
本論文的研究步驟主要可分為四個階段,(1)定位平台的概念設計、(2) 定位平台的理論分析、(3) 定位平台的有限元素分析、(4) 定位平台的實體驗證。在設計分析流程中,首先根據設計需求而產生定位平台的設計概念,進而設計出L型鉸鍊組,再針對定位平台的撓性結構進行分析其對平台所造成的自由度、靜態與動態特性,最後將理論分析與ANSYS有限元素分析、自然頻率響應實驗的結果三者互相比較誤差,藉以驗證理論分析流程的正確性,並經由實體實驗量測出平台尺寸為150mm×150mm×45mm,在X方向之最大位移為29.3 μm、Y方向之最大位移為11.94 μm、Z方向之最大位移為6.74 μm、θ之最大旋轉量為405.41 μrad、ψ之最大旋轉量為57.18 μrad、φ之最大旋轉量為63.72 μrad之定位效果。

The purpose of this research is trying to design a 6 degree-of-freedom micro-precision positioning stage with monolithic mechanism. It is hoped that this stage can reach 10 μm strokes along linear axis and with rotational angle no less than 50 μrad. The dimension of this positioning stage should be less than 200 mm × 200 mm × 50 mm. By using flexure hinge and piezoelectric actuator, this stage can achieve nanometer resolution.
The procedures of this research are divided into the following four steps: (1) conceptual design; (2) theoretical analysis; (3) finite element analysis; and (4) experimental verification. A conceptual design for the positioning stage is conducted according to functional requirements verification in the first beginning. L-shaped flexure hinges are then designed. Mathematical model of this stage is developed, and followed by finite element analysis. Finally, experiments are conducted to verify the design. The actual dimension of the positioning stage is 150 mm × 150 mm × 45 mm. From the experiment results, it shows that the stage can achieve a maximum displacement of 29.3 μm in X axis; 11.94 μm in Y axis; and 6.74 μm in Z axis. The stage can also achieve a maximum rotation of 405.41 μrad around X axis; 57.18 μrad around Y axis; and 63.72 μrad around Z axis.
URI: http://hdl.handle.net/11455/2551
其他識別: U0005-2801201118241300
Appears in Collections:機械工程學系所

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