A Method of Using Cepstrum to Identify Rotating and Static Rubbing Parts of Aeroengine
An aero-engine and cepstrum technology, which is applied in the direction of engine testing, machine/structural component testing, measuring devices, etc., can solve problems such as dependence, huge amount of calculation, and affecting positioning accuracy
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[0037] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:
[0038] This test uses the figure 1 The shown aero-engine rotor tester realizes rubbing test. In terms of the structural design of the tester, it is first considered that the shape is consistent with the casing of the core machine of the aero-engine, and the size is reduced by three times; The adjustable stiffness support structure is designed to adjust the dynamic characteristics of the system; the multi-stage compressor is simplified to a single-stage disk structure, and a rotor-support-blask-casing system is formed structurally. The tester can realize different degrees of rubbing by adjusting the rubbing bolt 4 to squeeze the rubbing ring 1 .
[0039] In each experiment of this embodiment, four rubbing screws are designed at the turbine case to realize rubbing experiments at four parts. The rubbing position is based on facing the turbine casing as a standard,...
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