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研究了高参数透平压缩机械迷宫密封气流激振的机理，提出了一种消振型迷宫密封结构，试验结果证明在密封腔内加入纵向阻挡片，有效地阻止流体在腔内的周向旋转，提高了密封刚度，获得了满意的消振效果。
In this paper, the vibration excitation mechanism of a labyrinth sealed gas turbine with high-parameter turbo-compressor is studied. A kind of damping-type labyrinth seal structure is proposed. The experimental results show that the longitudinal barrier is added in the sealed chamber to prevent the fluid from rotating circumferentially , Improve the seal stiffness, obtained a satisfactory vibration reduction effect.