Development method for mechanical wear system on the basis of abrasive particle wear mechanism

Abstract

The invention discloses a development method for a mechanical wear system on the basis of an abrasive particle wear mechanism. The development method comprises an abrasive particle image preprocessingmodule, a characteristic extraction module and an abrasive particle identification module, wherein the image processing module is mainly used for processing an abrasive particle image; the abrasive particle characteristic extraction module is mainly used for extracting the geometric and textural characteristics of the abrasive particle; an image identification module is used for distinguishing atype to which the abrasive particle belongs; and a mathematic model for monitoring a mechanical wear state on the basis of abrasive particle characteristic identification is put forward on the basis of a situation that the abrasive particle has different shapes and textural characteristics under different wear mechanisms by aiming at the problem the monitoring accuracy of a mechanical equipment wear state is low. Through shape characteristics, spherical abrasive particles and cutting abrasive particles are identified, fatigue abrasive particles and severe sliding wear particles are identifiedby the combination of shape and textural characteristics, a characteristic vector for mechanical wear state monitoring is established on the basis of the extracted characteristic parameter, and through a support vector machine classifier model, a mechanical wear state is monitored and distinguished.

Description

technical field [0001] The invention relates to the technical field of abrasive grain recognition, in particular to a development method of a mechanical wear system based on the abrasive grain wear mechanism. Background technique [0002] In the field of industrial production, as the market has higher and higher requirements for product precision, the requirements for the accurate operation of mechanical equipment are also increasing, and the failure of mechanical equipment will not only cause huge economic losses, but even endanger personal safety. For example, in the aviation industry, any small error in an aircraft may cause incalculable losses. [0003] The maintenance method of equipment has gone through the following main stages: one is post-event maintenance. Due to the difficulty of accurately grasping the time interval, there are situations such as excessive maintenance or sudden shutdown in the market; the third is condition-based maintenance. This stage was first...

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Problems solved by technology

[0007] At present, spectroscopic analysis is the main method for metal content analysis in engine lubricating oil, but it also has many shortcomings: 1. Quantitative analysis cannot be performed on particles of different sizes; 2. It is not sensitive to identify large-size particles; 3. It cannot Observe the shape of the particles; 4. The cost is too high

[0018] Classification and identification of abrasive grains are carried out using characteristics such as the concentration, color, shape, and texture of abrasive grains, but there are many characteristics and parameters describing abrasive grains that inevitably overlap, which makes abrasive grains picture The efficiency of image analysis and identification is affected

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