磁粉夹持, 磁场, 有限元方法, ANSYS

With regard to parts which were not clamped with common platen, a design of clamping workpiece by magnetic powder was presented. Magnetic field in magnetic powder clamping system was 2D modeled through FEM, and the distribution of magnetic field and effects of different magnetic powder parameters were qualitatively studied. The system's magnetic field model and calculation were verified with measurements. Results show that majorities of magnetic lines form closed circuit thought magnetic powder. Magnetic induction value decreases with the increase of height and increases with the increase of length with same input currents. It is significative to use this conclusion in reasonable selection of magnetic powder parameters. 