Abstract：The smart material so called magnetorheological (MR) fluid was applied in the research on vibration suppression of cylindrical turning. According to the framework of common lathe CA6140, the shear MR damper for turning vibration suppression was developed by designing the structure and magnetic circuit. Dynamic model of turning system with MR damper was set up and its effect of suppressing turning vibration was proved by simulation. Then, by optimizing the magnetic circuit of the damper based on finite element method, the area of magnetic circuit decreased by 24% compared with the original design, which made the damper more compatible. Also, since the consumption of magnetic field in non-MR fluid region declined, the working efficiency of the damper enhanced. Finally, the suppressive vibration experimental system was set up to verify the effect of the damper. It shows that the MR damper can suppress the machining vibration apparently.
2013, Vol. 32 
