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Journal of Applied Mathematics
Volume 2014, Article ID 298218, 13 pages
http://dx.doi.org/10.1155/2014/298218
Research Article

Quality Prediction and Control of Reducing Pipe Based on EOS-ELM-RPLS Mathematics Modeling Method

1State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110004, China
2Electrical Engineering and Automation Department, Tianjin Polytechnic University, Tianjin 300387, China

Received 27 December 2013; Accepted 12 February 2014; Published 20 March 2014

Academic Editor: Nachamada Blamah

Copyright © 2014 Dong Xiao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The inspection of inhomogeneous transverse and longitudinal wall thicknesses, which determines the quality of reducing pipe during the production of seamless steel reducing pipe, is lags and difficult to establish its mechanism model. Aiming at the problems, we proposed the quality prediction model of reducing pipe based on EOS-ELM-RPLS algorithm, which taking into account the production characteristics of its time-varying, nonlinearity, rapid intermission, and data echelon distribution. Key contents such as analysis of data time interval, solving of mean value, establishment of regression model, and model online prediction were introduced and the established prediction model was used in the quality prediction and iteration control of reducing pipe. It is shown through experiment and simulation that the prediction and iteration control method based on EOS-ELM-RPLS model can effectively improve the quality of steel reducing pipe, and, moreover, its maintenance cost was low and it has good characteristics of real time, reliability, and high accuracy.