Multi-parameter regulation and control-based eccentric data processing and run-out tolerance distribution method for single-stage part of large-scale high-speed rotary equipment

Abstract

The invention provides a multi-parameter regulation and control-based eccentric data processing and run-out tolerance distribution method for a single-stage part of large-scale high-speed rotary equipment. Sampling angle distribution characteristics and measurement errors of rotor circle contour measurement are analyzed, and collected circle contour data are subjected to functional filtering through a non-equal interval morphological filter; three parameter components of rotor eccentricity, sensor measuring head deviation and sensor measuring ball radius in circular contour measurement are considered, and a three-parameter circular contour measurement model is established; according to the measurement data with high filtering precision and the circular contour measurement model, the eccentric error can be accurately estimated, the objective function of the eccentric error of the measurement surface of the rotor is obtained, the probability density of the eccentric error is further obtained, the probability relation between the contact surface runout information and the eccentric error is obtained, and rotor tolerance distribution is achieved.

Description

technical field [0001] The invention belongs to the technical field of mechanical tolerance allocation, in particular to a method for processing eccentricity data of single-stage components of large-scale high-speed rotary equipment and a runout tolerance allocation method based on multi-parameter control. Background technique [0002] With the vigorous development of the aviation industry in our country, the requirements for the performance of aero-engines are also continuously increasing. While pursuing the development of aeroengines with higher thrust-to-weight ratios, attention should also be paid to reducing the vibration of the engine itself to improve engine performance and ensure flight safety. Reducing engine vibration is an important goal in engine development. The assembly quality of the rotor has a great influence on the performance of the aero-engine, so in order to reduce the vibration, it is necessary to assign a reasonable value in the design of the aero-eng...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the existing technical problems, and to provide a large-scale high-speed rotary equipment single-stage component eccentric data processing and runout tolerance distribution method based on multi-parameter control, so as to solve the low measurement accuracy of the aeroengine rotor circle profile, assembly The problems of low coaxiality and poor assembly quality can improve the performance of aero-engines

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