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A Study on a Wire Tension Adaptive Control System of a Multi-wire Saw in Computer Simulation
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作者 LI Wei ZENG Yong-dong 《International Journal of Plant Engineering and Management》 2011年第3期170-177,共8页
Based on the analysis of the mechanism of wire tension control by using torque motors in the multi-wire saw machining process, some mathematical models of a tension control system are studied, and an adaptive algo- ri... Based on the analysis of the mechanism of wire tension control by using torque motors in the multi-wire saw machining process, some mathematical models of a tension control system are studied, and an adaptive algo- rithm is designed for controlling the wire tension. In this algorithm of tension control, the rotation speeds and waving angle of motors are measured and fed back to the controller, and the NLMS( normalized least mean squares) algorithm is used to calculate the adaptive correction value and control the wire tension accurately. The computer simulation results in Matlab software validate the high accuracy for controlling the system of the wire tension with the NLMS algorithm in the multi-wire saw machining process. 展开更多
关键词 multi-wire saw wire tension adaptive control computer simulation
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RULED SURFACE MACHINING BY 4-AXES SIMULTANEOUS CONTROL WIRE-EDM 被引量:1
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作者 Liu Zhengxun Zhao Yongshun Ni Zewang(Nanjing University of Aeronautics and Astrcnautics) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1995年第4期291-297,共17页
On the tasis of study in the mathematical model of 3-dimensional ruled surface (RS),this paper introduces a new concept of distance paramcter (DP) and also puts forward that themethod of modeling a RS depends on not o... On the tasis of study in the mathematical model of 3-dimensional ruled surface (RS),this paper introduces a new concept of distance paramcter (DP) and also puts forward that themethod of modeling a RS depends on not only two boundary curves but also DP. According toabove theory, the formulas to calculate corresponding point coordinates to any kind of top and bot-tom profile of a workpiece and formulas to calcuate the maximum inclination angle of ruling linehave been obtained. Then a different top and bottom RS mathining method including profile withline-are combination as well as parametric curves has been achieved by 4-axes simultancous con-trol programming proposed. 展开更多
关键词 axes simultaneous control Ruled surface Wire cutting electric discharge ma-chining
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NEW METHOD FOR VIBRATION MEASUREMENT AND CONTROL OF MOVING WIRE
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作者 Hu Xuanli Chen Tianning +1 位作者 Tang Yongjie Zhang Shengbi (Xi’an Jiaotong University) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1996年第4期286-291,277,共2页
On-line measurement and control method of moving wire vibration are developed. The response measurement of the wire is indirectly accomplished by 'vibration transfer method ' and active con- trol is carried o... On-line measurement and control method of moving wire vibration are developed. The response measurement of the wire is indirectly accomplished by 'vibration transfer method ' and active con- trol is carried out on the vibration receiving body by piezoelectric ceramics. The fundamental princi- ples of measurement and control are stated and experimental results are presented. 展开更多
关键词 Moving wire Vibration Meausrement Active control
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