Discrete element simulation of vibration forming of rammed material in the tube body of the straight compensator
Vibration forming method is used to vibrationally fill the rammed material particles in the straight compensator tube body to make the particles denser and more uniform,so as to improve the performance of the tube body in actual pro-duction.By selecting suitable rammed material for particle grading as the research object,orthogonal tests with three factors and three levels were designed for vibration frequency,vibration amplitude and vibration direction based on discrete element method.The filling density of particles was taken as the evaluation index.Through orthogonal test,it was concluded that when the vibration frequency was 85 Hz,the vibration amplitude was 0.3 mm,and the vibration direction was vertical,the filling effect of particles was the best.On this basis,the uniformity of the material after vibration was analyzed.The calculation of the particle dispersion coefficient proved that the uniformity of the particles after vibration was greatly improved.
万方数据
