关键词: 直线激振力, 偏离质心, 振动床面, EDEM

Abstract: In order to study the working condition of vibrating bed when the linear exciting force deviates from the centroid, based on the dynamic analysis, the mechanical model of the vibrating bed under the condition is established, and the rotation angle is calculated. In combination with EDEM, the performance of the bed with the exciting force passing through the centroid, the front of the centroid, and the rear of the centroid is simulated. The mass flow rate of the material and the pressure of the particles on the bed are obtained and analyzed. The results show that when the exciting force passes through the front of the centroid, the amplitude of the ending of the vibrating bed rises, the particles run faster. In addition, the pressure on the bed is more evenly, and is reduced on the feeding of it, which is beneficial to prolong the life of the bed; however, the results are opposite when the exciting force passes behind the centroid. Based on these, it is proposed that the linear exciting force passing through the front of centroid favors the vibration feeding process, which provides a basis for the optimal design of the vibration conveying equipment.