數值控制工具機系統的模態與動力學分析

本篇論文旨在展現當今虛擬工具機技術研究的進程，以及現行相關研究中將可能面對的瓶頸與挑戰。本論文採行有限元素法(Finite Element Method, FEM)為整體數值控制工具機做結構性分析，並揭示實驗過程中，所採行的測量及計量之方法。本研究中，以探討多種研究範例，探討多個機械元件中元素的最佳化方法與動態分析。本論文中呈現出輸出控制端、切削之情況以及數值控制工具機之結構等，三者於實驗中之交互關係。機械之多體動力模型(Multi-body dynamic models)將使機械之多重動態模擬得以整合，動態結構與控制之手段將於文中作探討。以多個研究範例作為示範，以展現數值控制工具機、控制裝置以及切削程序中所出現之干擾與阻礙，並探討三者之交互關係。本文以ANSYS軟體作為模擬之平台，用來模擬機械之運作情形並表現其對機械動力之影響。模擬結束後，即可判斷兩種分析軟體模擬之精確度 (ANSYS和FEMAP)。簡言之，本論文將使用RerurDyn軟體模擬數值控制工具機之工具範例。本論文中，將比對過去以及現今之相關研究內容以及研究中所面對之種種挑戰，並在最後做出研究總結，以便於未來能實現完全數位化之數值控制工具機。

關鍵字

振動；模態分析；有限元素分析；動態響應；拓樸最佳化。

並列摘要

This thesis is aimed to presents current state of Virtual Machine Tool Technology and related ongoing research challenges. The structural analysis of CNC machine tools using Finite Element models and their experimental calibration techniques are presented. The kinematic analysis and optimization of machine elements are discussed with sample examples. The interaction between the control of the feed drives, cutting conditions and machine tool structure is presented. Multi-body dynamic models of the machine, which allow integrated simulation of machine kinematics, structural dynamics and control techniques, are discussed. The interaction between the CNC machine tools, controller and cutting process disturbances are discussed with sample examples. ANSYS software will be used for the simulation of machining operation and its impact on the dynamics of the machine. Afterward, the accuracy between ANSYS and FEMAP will be given out. To sum up, some toolkit examples associated with CNC machine tools will be simulated by RerurDyn software. The thesis presents both the summary of current and past research, as well as research challenges in order to realize a fully digitized model of the CNC machine tools.

並列關鍵字

Vibration ； modal analysis ； Finite element analysis ； Dynamic analysis ； Topology optimization.

參考文獻

[33] Rivin, E. I., 1999, “Stiffness and Damping in Mechanical Design” Marcel Dekker Inc., New York.

[7] Merlet, J. P., 1997, A Design Methology for the Conception of Robots with Parallel Architecture, Robotics, Vol. 15, pp. 367-373.

[14] Schwertassek, R., Wallrap, 1999, Dynamik flexibler Mehrkörpersysteme, Springer-Verlag, Braunschweig.

[15] Cook, R., Malkus, D., Plesha, M., 1988, Concepts and Applications of Finite Element Analysis, 3. Edition, John Wiley, Madison.

[18] Schumacher, A., 2004, Optimierung mechanischer Strukturen – Grundlage und industrielle Anwendung, Springer-Verlag, Hamburg.

國際替代計量

數值控制工具機系統的模態與動力學分析

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