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A method for predicting the stability of an angular contact ball bearing retainer

A technology for angular contact ball bearings and stability prediction, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of increasing calculation time, save calculation time, improve analysis efficiency, and generalization ability Good results

Active Publication Date: 2019-04-16
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dynamic equations of rolling bearings are a set of rigid equations, and the time step needs to be shortened to ensure numerical accuracy during numerical integration, thus increasing the calculation time

Method used

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  • A method for predicting the stability of an angular contact ball bearing retainer
  • A method for predicting the stability of an angular contact ball bearing retainer
  • A method for predicting the stability of an angular contact ball bearing retainer

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Experimental program
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Embodiment Construction

[0033] Introduce detailed technical scheme of the present invention below in conjunction with accompanying drawing:

[0034] refer to figure 1 , a method for predicting the stability of an angular contact ball bearing cage of the present invention comprises: using the angular contact ball bearing dynamic model ADORE to analyze the instability of the angular contact ball bearing cage under a certain speed and load; establishing a KELM model; The cage instability calculated by angular contact ball bearing dynamic model ADORE is used to train the KELM model; the trained KELM model is used to predict the stability of the angular contact ball bearing cage.

[0035] The specific implementation steps are:

[0036] S100~calculate the instability of the cage; use the dynamic model ADORE of the angular contact ball bearing to calculate the instability of the cage of the angular contact ball bearing under the action of the rotating speed and the load.

[0037] S101~Calculate the whirl ...

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Abstract

The invention belongs to the technical field of mechanical operation state trend prediction, and particularly relates to a method for predicting the stability of an angular contact ball bearing retainer. The method comprises the following steps: S100, calculating the instability of the retainer; S200, constructing a kernel extreme learning machine KELM model; S300, training the KELM model; And S400, predicting the instability of the retainer by using the trained KELM model. A KELM model is trained through the instability, obtained through calculation of an angular contact ball bearing dynamicmodel ADORE, of a retainer. and if not, the stability of the retainer under the action of other rotating speeds and loads can be predicted by adopting the trained KELM model, and calculation does notneed to be carried out by adopting a dynamic model, so that the calculation time is saved, and the analysis efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of trend prediction of mechanical running states, and in particular relates to a method for predicting the stability of an angular contact ball bearing cage. Background technique [0002] Angular contact ball bearings are widely used in high-speed applications, such as aero-engines, high-speed machine tool spindles, etc. At high speeds, cage stability seriously affects bearing life. When the cage runs unstable, there is a strong instantaneous collision between the rolling elements and the cage, which accelerates the wear of the cage and accelerates the failure of the cage and the bearing. Therefore, it is of great engineering and theoretical significance to analyze and predict the cage stability of angular contact ball bearings. [0003] At present, the stability of the cage is mainly analyzed by the method of dynamic modeling and analysis. American scholar GUPTA (Gupta PK.Visco-elastic effects in MIL-L-7...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F2119/06
Inventor 兰媛牛蔺楷李国彦钮晨光武兵熊晓燕
Owner TAIYUAN UNIV OF TECH
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