The analysis shows that differences of mass flow and pressure rise between the two splitter-splitted passages have significant influence on unsteady flow in the compressor stage.
小叶片将大叶片通道分成的两个通道具有不同的流量和负荷，通道之间的负荷分配对于流动的非定常性会产生较大影响；
Abstract: the vibration increasing of adjustable vane double-stage axial flow fan caused by the rotors mass unbalance for the vane abrasion in long period running is a main malfunction.
摘要：针对动叶可调双级轴流风机长期运行中叶片磨损造成转子质量不平衡，引起风机振动增大的问题。
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