Method of Model Identification and Precise Control for Tunnel Boring Machine Body Posture Adjustment[J]. 2021, 55(6): 9-17.
DOI:
Method of Model Identification and Precise Control for Tunnel Boring Machine Body Posture Adjustment[J]. 2021, 55(6): 9-17.DOI: 10.7652/xjtuxb202106002.
Method of Model Identification and Precise Control for Tunnel Boring Machine Body Posture Adjustment
Aiming at the derivation of the tunnel excavation track and the coal production inefficiency and safety problem caused by poor posture control accuracy of tunnel boring machine(TBM)
a model identification method based on the particle swarm optimization(PSO)and a fuzzy neural network control method of attitude control are proposed. Firstly
the relation between the posture error and the tunnel section is analyzed
and the structure of the control system transfer function is determined according to the kinematic and hydraulic system model. Through the PSO searching character and the response of the input and output signals
the transfer function parameters could be fitted. Simulation results show that the identification accuracy based on PSO is 96.75% and 95.15% higher
respectively
than that based on least square or genetic algorithm identification method. Making use of the fuzzy logic control' strong nonlinearity adaptability and the neural network' self-learning ability
a posture PID control algorithm is proposed
and a EBZ-55 tunnel boring machine attitude control experiment system is designed and established. Experiment shows that compared with the fuzzy PID
the proposed fuzzy neural network PID control system could mostly reduce 57.1% overshoot error and 53.5% response time in different conditions
and the posture of the tunneling boring machine could be controlled in 1° stably.
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