Method for calculating roll shaft performance index of flexible material processing device

Abstract

A method for calculating a roll shaft performance index of a flexible material processing device comprises the following steps: a step 1: acquiring vibration data of a roll shaft through a three-axisacceleration sensor; a step 2: performing data feature extraction after the vibration data is subjected to sliding average noise reduction, wherein the data feature includes a time domain feature parameter, a frequency domain feature parameter, and a time-frequency domain feature parameter of the vibration data; and a step 3: inputting the data feature into a principal component analysis weightedfusion module, and obtaining a performance degradation index for a roll shaft after the data feature is subjected to dimension reduction. The features of the vibration data of the flexible material processing device mainly include time domain features, frequency domain features and time-frequency domain features. The time domain features, the frequency domain features and the time-frequency domainfeatures are used for calculation of the performance degradation index for the roll shaft, which can comprehensively and accurately evaluate the performance degradation of the roll shaft.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a method for calculating the performance index of a roller shaft of a flexible material processing equipment. Background technique [0002] Under the demand of large-scale mass production and high-efficiency manufacturing, the performance of processing equipment determines the quality and efficiency of product manufacturing. Usually the performance of processing equipment is controlled by multiple or even hundreds of parameters, but in fact, only a few key parameters affect the machining equipment. Therefore, when analyzing huge data, in order to avoid the disaster of dimensionality, it is necessary not to lose data. Based on the information, how to screen the main characteristic parameters has become a research hotspot. [0003] The performance of the roller shaft of flexible material processing equipment directly determines the quality and production efficiency o...

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