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Research on Fuzzy Control System of Machine Tool Chatter Based on Magnetic Fluid-foam Metal Damper

Author: ChenSiYu
Tutor: YuYingHua
School: Liaoning Technical University
Course: Mechanical Manufacturing and Automation
Keywords: MR fluid foam metal damper machine tool chatter fuzzy control
CLC: TB535.1
Type: Master's thesis
Year: 2009
Downloads: 45
Quote: 0
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Abstract


Recent years in order to improve machining precision through the way of controlling machine tool cutting chatter is received widespread attention by the academia. As one of the key components in control system, the MR damper has the characteristics of high-force, rapid-response, low-energy consummation. However, conventional damper applys to narrow frequency range, so the higher frequency of cutting chatter can not achieve the desired control effect. New type of magnetic fluid-foam metal damper is able to adapt to higher frequency of vibration, it will have broad application prospects in controlling machine tool cutting chatter.According to the rheological properties of magnetorheological fluids and electromagnetics ,this paper improves structure of damper which is primary designed by our studying team and according to principle of damper builds the theoretical model of calculateing damping force. Use ANSYS to analyze internal magnetic field of damper ,verify the improved damper have better effects in improving the magnetic circuit performance.With damper as the research object, combine with fuzzy control theory designs fuzzy control system of machine tool chatter based on magnetic fluid-foam metal damper. Use Simulink to simulate this control system. The result shows that control system which is designed has better effects in controlling chatter during the cutting process.

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CLC: > Industrial Technology > General industrial technology > Acoustic engineering > Vibration, noise and its control > Vibration and noise control and its use > Vibration isolation, damping materials and structures
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