Citation

Luo Z, Tian P. China Saf. Sci. J. 2021; 31(3): 28-34.

Copyright

(Copyright © 2021, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2021.03.004

PMID

unavailable

Abstract

In order to improve prediction accuracy of corrosion pipelines' failure pressure and simplify its calculation process, a prediction model based on RS, PSO and ELM was proposed. Key factors that affected failure pressure were extracted in a way of attribute reduction, PSO was selected to optimize input weight and hidden layer deviation of ELM, and normalized core index data were computed in calculation. The results show that prediction of the model is basically consistent with actual values, its mean square error (MSE) is reduced to 0.255 compared with single ELM model, and absolute mean error is reduced to 0.32 compared with other assessment models of failure pressure. © 2021 China Safety Science Journal

Language: zh