Introducing vibrations is a common way to improve the granular flow in silos to avoid clogging. In this study, a three-dimensional silo submitted to vertical vibration was built. The effect of vibration on the discharge of tilted silo was studied. The results showed that, the discharge rate did not depend on the particle depth but decreased with the increase of the outlet tilt angle, regardless if the silo was vibrated or not. Discharge rate showed non-monotonic relationship with vibration frequency at high amplitude, while increased with increasing frequency at low amplitude. The contour plots of the influence of vibration and tilt angle on the discharge were given. Based on the analysis of variance (ANOVA), the effect of the tilt angle on the discharge was higher than the vibration amplitude and frequency.

引入振动是改善筒仓中颗粒流动以避免堵塞的常用方法。在这项研究中，建造了一个承受垂直振动的三维筒仓。研究了振动对倾斜筒仓卸料的影响。结果表明，无论筒仓是否振动，卸料率不依赖于颗粒深度，而是随着出口倾斜角的增加而降低。放电速率在高振幅时与振动频率呈非单调关系，而在低振幅时随着频率的增加而增加。给出了振动和倾斜角对放电影响的等高线图。基于方差分析（ANOVA），倾斜角对放电的影响高于振动幅度和频率。