At the same time , tip leakage induced by pressure gradient and relative motion between the blade tip and the shroud wall is found to have a major influence on detailed flow properties in tip region of rotor passage 同时，由于转子叶片压力面和吸力面之间压力梯度以及叶顶与机匣之问的相对运动产生的间隙流对转子通道内的细微流动结构有较大的影响。
The compressor exists about 0 . 265 rotor blade converted frequency near stall point , its intensity increases with rising of rotating speed and reducing blade row spacing . the blade row spacing would exert influences on rotor - stator interaction , stability and stall mode 在临近失速点处，不同工作转速、不同动?静叶排轴向间距均存在约为0 . 265转子叶片折合频率的特征频率扰动，强度随转速的上升和轴向间距的减少而增大。
On the rotor blade pressure surface , the dominant frequencies of unsteady surface pressure are the up - stream blade wake passing frequency and its harmonics , and the amplitudes of pressure fluctuations decrease from leading edge to trailing edge 转子叶片吸力面非定常压力受叶片附面层和上游叶片尾迹共同影响，其主导频率为上游叶片尾迹频率及其倍频，但是在吸力面前部气流加速区压力波动幅度沿流向增大，而在吸力面后部气流减速区压力波动幅度沿流向减小。
An aeroengine power - turbine 1 ( superscript st ) stage rotor shrouded blade is taken for an example in the article , tightness of shroud and contact force 、 blade body stress under working state and assembly state are calculated by finite element contact analysis method , influence of working load ( temperature and centrifugal force ) is mainly analyzed 摘要以航空发动机动力涡轮一级带锯齿形叶冠的转子叶片为例，用有限元接触分析方法对装配和工作状态下的叶冠紧度和叶冠接触力、叶身应力进行了计算和分析，着重考察了工作载荷（温度和离心力）对叶冠接触力的影响。
Main working principal is that the bottom scraper with low rotate speed impels materials to form circumfluence in the basin of machine , the impeller of rotor rotating with medium speed can not only add wallop to sand , but also can add shear force to the sand with scraper so that the sand can touch and scrub each other fast ; wind blasting is set to cool the hot sand , remove dust and strip the membrane so that fast speed of regeneration and top - grade used sand can be gained 主要工作原理是低速转动的底刮板推动物料在机盆内形成环流，中速转动的转子叶片既对砂子施以冲击力，又与刮板配合对砂子施以剪切力，使砂粒间快速接触和强烈摩擦，围圈设风带鼓风使热砂沸腾冷却除尘脱膜，从而达到再生速度快，回用砂质量好的目的。
