Research on Tip Clearance Measurement Technology of Aero-engine Compressor Rotor
In order to solve the problem of inaccurate use of feeler gauges to check the radial clearance of compressor blade tips during the assembly process of aircraft engines.A measurement and calculation method is proposed.By indirectly measuring the outer ring radius of compressor casing stator and rotor blade tip radius,and taking into account the influence of different centeredness of rotor and stator,different axes of core engine rotor,axial position of compressor rotor and stator,indirect calculation can obtain the radial clearance of the compressor rotor blade tip in the design state,which could more accurately reflect the distribution of the radial clearance of the compressor blade tip in the assembly state.This method can ensure that the comprehensive measurement accuracy is not less than 0.021mm.
aero-enginetip radial clearancetip clearance methematical model
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