IJAT Vol.5 No.6 pp. 875-882
doi: 10.20965/ijat.2011.p0875


Feed Drive Simulator

Ryuta Sato

Department of Mechanical Engineering, Kobe Unibersity, 1-1 Rokko-dai, Nada, Kobe, Hyogo 657-8501, Japan

March 23, 2011
June 7, 2011
November 5, 2011
feed drive system, simulator, parameter identification, auto tuning
Feed drive systems consisting of servo motors and ball screws are generally used with NC machine tools, wire bonders, tip mounters, etc. Higher speed and accuracy are continuously required to the feed drive systems. In order to achieve higher performance of the systems, it is effective to analyze the dynamic behaviors using simulations. This study proposes a feed drive simulator consists of parameter identification and simulation modules. The parameter identification module consists of 3 sub-modules; identification system for friction forces, identification system for frequency response, and identification system for electric delay. The identification algorithms for unknown parameters are newly proposed. The simulation module is based on a mathematical model which consists of mass, inertias, stiffness, damping, frictions, servo gains, electrical delay, and control frequency. The simulation module also has a servo tuning function. The simulator, which includes a Graphical User Interface (GUI) was developed using Visual C++. Actual feed drive systems were used to confirm the effectiveness of the simulator. It was confirmed that the simulator identifies parameters systematically, simulates physical values for different motions, and automatically determines servo gains based on the parameters identified.
Cite this article as:
R. Sato, “Feed Drive Simulator,” Int. J. Automation Technol., Vol.5 No.6, pp. 875-882, 2011.
Data files:
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