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低速大尺寸压气机实验装置和转子流场动态测量技术压气机是航空发动机的关键部件。它的发展离不开先进的实验和测量技术。为此该项目研制了一套高水平、性能完备的低速大尺寸轴流压气机实验装置,可试验4级压气机,还可用作环形叶栅风洞。旋转四坐标全电动探针位移机构,可随转子同步旋转,同时探针可分别作径向、轴向、周向及绕自身轴自转的4个坐标运动。3种高频压力探针为圆柱单孔针、双斜孔探针和圆柱4孔针。其头部镶有若干微型高频压力传感器,频响
Low-speed large-size compressor experimental device and rotor flow field dynamic measurement technology Compressor is a key component of aeroengine. Its development is inseparable from advanced experimental and measurement techniques. To this end, the project developed a set of high-level, fully-performance low-speed and large-scale axial-flow compressor experimental devices that can test a 4-stage compressor and can also be used as a ring-shaped cascade wind tunnel. Rotary four-coordinate all-electric probe displacement mechanism can be synchronized with the rotor rotation, while the probe can be radial, axial, circumferential and self-axis rotation around the four coordinates of the movement. Three kinds of high-frequency pressure probes are cylindrical single-hole needle, double oblique hole probe and cylindrical 4-hole needle. Its head with a number of miniature high-frequency pressure sensor, frequency response