Reliability life analysis of blades of twin-shaft mixer based on wear failure

As an important part of mixing material, the study on the reliability life of the blade of mixer is very necessary. According to the Arcard wear formula, the mathematical model expression of the wear amount and the load on the blades of the twin-shaft mixer in a single cycle is established. The disc...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-01, Vol.1043 (2), p.22018
Main Authors: Li, Nan-Xi, Cheng, Hai-Ying, Liu, Jiang
Format: Article
Language:English
Subjects:
Blades
Component reliability
Discrete element method
Failure analysis
Interpolation
Load distribution (forces)
Monte Carlo simulation
Reliability analysis
Stress concentration
Wear
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Summary:As an important part of mixing material, the study on the reliability life of the blade of mixer is very necessary. According to the Arcard wear formula, the mathematical model expression of the wear amount and the load on the blades of the twin-shaft mixer in a single cycle is established. The discrete element method is used to obtain the load on the blade in the mixing process. The law of load distribution of mixer blades is obtained by Lilliefers method. Furthermore, Lagrange interpolation method is used to analyze the static simulation results of the mixing blade, and the total wear amount when the blade reaches the critical thickness is obtained. By establishing the functional relationship between wear and blade life, Monte Carlo method is used to simulate the load distribution law to predict the reliability life of the mixer blade. The results show that the reliability of the life of the mixer blade is 85.02%.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1043/2/022018