Parameter identification and pressure control of dynamic system in shield tunneling using least squares method

An estimation approach using least squares method was presented for identifi- cation of model parameters of pressure control in shield tunneling. The state equation of the pressure control system for shield tunneling was analytically derived based on the mass equilibrium principle that the entry mas...

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Bibliographic Details
Published in:Journal of coal science & engineering, China China, 2010-09, Vol.16 (3), p.256-261
Main Authors: Li, Shou-ju, Cao, Li-juan, Shangguan, Zi-chang, Liu, Bo
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Geochemistry
Geology
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mechanical Engineering
估计方法
动力系统
压力控制系统
参数辨识
数值模拟
最小二乘法
盾构掘进
质量平衡
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Summary:An estimation approach using least squares method was presented for identifi- cation of model parameters of pressure control in shield tunneling. The state equation of the pressure control system for shield tunneling was analytically derived based on the mass equilibrium principle that the entry mass of the pressure chamber from cutting head was equal to excluding mass from the screw conveyor. The randomly observed noise was numerically simulated and mixed to simulated observation values of system responses. The numerical simulation shows that the state equation of the pressure control system for shield tunneling is reasonable and the proposed estimation approach is effective even if the random observation noise exists. The robustness of the controlling procedure is vali- dated by numerical simulation results.
ISSN:1006-9097
1866-6566
DOI:10.1007/s12404-010-0307-2