智慧型精密多功能壓床系統的研製

Development of an Intelligent Precision Multiple-Function Press System

洪國斌(Kuo-Ping Hung)

指導教授 ： 林百福

國立臺北科技大學/機電學院/車輛工程系所/碩士(2005年)

摘要

本研究發展智慧型精密多功能壓床系統，此系統除了具備傳統壓床的功用外，並同時具有沖床，折床，壓力試驗，拉力試驗及疲勞試驗等多項功能。本系統採用油壓驅動方式，配合微電腦控制，達到高精密定位，高速度，低噪音等性能，以符合工業實際應用的需求。
依據多功能壓床之應用素求，設計智慧型精密壓床系統之量測與控制軟體，實際操作試驗，以評估智慧型精密多功能壓床系統的控制性能及實際應用的可行性。然而，一般的液壓伺服系統具有非線性之動態特性與不確定性，難以建立其精確的數學模式，設計以模式為基礎的控制器去控制此系統。因此，本研究提出三種智慧型控制策略：（1）傳統模糊控制器(TFC)，（2）灰預測模糊控制器(GPFC)，（3）自組織模糊控制器(SOFC)，分別控制此一液壓伺服控制系統。實驗結果證實，灰預測模糊控制器與自組織模糊控制器能加快系統的輸出響應，在精密定位控制及維持與被測件之接觸力上，比傳統模糊控制器有較佳的控制性能。

關鍵字

多功能壓床 ； 拉力試驗 ； 疲勞試驗

並列摘要

This study attempts to develop an intelligent precision multiple-function press system which not only possesses the capability of the traditional press system, but also has the functions of the punching machine, break, pressure test, tension test, fatigue test, and so on. This system employs a hydraulic driving strategy with a microcomputer control for achieving the performances of accurate position, high speed and low noise. These performances should be able to satisfy the customer's requirement in industrial applications.
The measuring and control software in the intelligent precision press system was designed according to the applied requirement in the multiple-function press. This system would be controlled and evaluated further its control performance and applied facilitation for industrial applications practically. However, a general hydraulic servo system has nonlinear dynamic characteristics and uncertainty. It is difficult to establish an accurate mathematical model to design a model-based controller to control it. Hence, this study proposed three intelligent control strategies: (1) traditional fuzzy controller (TFC), (2) grey-prediction fuzzy controller (GPFC), and (3) self-organizing fuzzy controller (SOFC), to control individually this hydraulic servo control system. Both the GPFC and SOFC have better control performance in accelerating output response of the system for the precise position control and maintaining the precise contact force for the measured workpiece than
does TFC, as confirmed by experimental results.

並列關鍵字

multiple-function press system ； tension test ； fatigue test

參考文獻

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