The dynamics of a heavy cylindrical body in a horizontal cylindrical cavity filled with a viscous liquid and subjected to modulated rotation is experimentally investigated. In experiment the cylinders with different moment of inertia are used. Periodic variation (modulation) of cavity rotation rate leads to the azimuthal oscillations of the body in a uniformly rotating reference frame due to viscous interaction with the cavity wall. It is found that near the cavity boundary an averaged repulsive (lift) force acts on an oscillating body. Experiments in a wide range of dimensionless frequency of rotation rate modulation demonstrate that lift force coefficient monotonically growth with frequency increase. The rotation rate modulation is found to be an effective tool to control the behavior of solids located near the rotating wall under microgravity conditions. The analysis of steady velocity field near the oscillating body reveals vortices in form of rolls localized outside the viscous boundary layers.

实验研究了水平圆柱腔中充满粘性液体并经过调制旋转的重型圆柱体的动力学。在实验中，使用了具有不同惯性矩的气缸。由于与腔壁的粘性相互作用，腔旋转速度的周期性变化（调制）会导致物体在均匀旋转的参考系中发生方位角振荡。发现在空腔边界附近平均的排斥力（升力）作用在振荡体上。在各种无量纲的转速调制频率上的实验表明，升力系数随频率增加而单调增长。发现转速调制是控制微重力条件下位于旋转壁附近的固体行为的有效工具。对振动体附近的稳定速度场的分析揭示了以粘滞边界层外部的滚动形式的涡旋。