TY - GEN
T1 - Research on the degree of freedom control strategy for redundant-drive shaking tables
AU - Zhang, Lianpeng
AU - Yang, Yu
AU - Yang, Chifu
AU - Han, Junwei
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/24
Y1 - 2015/11/24
N2 - Redundant-drive shaking tables composed of more than one shaking tables are indispensible test equipments for anti-seismic study of long-span structures and are experiencing rapid development recently. However, the control strategy of the shaking tables system is greatly complex and there isn't a common accepted method now. This paper proposed two degree of freedom(DOF) control strategies for the shaking tables system composed of two identical redundant-drive electro-hydraulic servo shaking table: six DOFs control strategy and twelve DOFs control strategy. According to different control principles, build two kinds of coordinates, derive the geometric motion relationship of the platform or load and the hydraulic cylinders, and then use zero-position geometric linearity technique to obtain simplified coordinate transformation matrixes between platform or load motion space and the hydraulic cylinders space. The control system model with DOF control strategy and dynamic model of the shaking tables are built using the Matlab/Simulink and SimMechanics software. Simulation experiments are carried out and the test results indicate that both the control strategies can realize the accurate motion of the platform and verify the feasibility and validity of the proposed control strategies. In the end, this paper compared the two DOF control strategies and analyzed the advantages and disadvantages of each control strategy.
AB - Redundant-drive shaking tables composed of more than one shaking tables are indispensible test equipments for anti-seismic study of long-span structures and are experiencing rapid development recently. However, the control strategy of the shaking tables system is greatly complex and there isn't a common accepted method now. This paper proposed two degree of freedom(DOF) control strategies for the shaking tables system composed of two identical redundant-drive electro-hydraulic servo shaking table: six DOFs control strategy and twelve DOFs control strategy. According to different control principles, build two kinds of coordinates, derive the geometric motion relationship of the platform or load and the hydraulic cylinders, and then use zero-position geometric linearity technique to obtain simplified coordinate transformation matrixes between platform or load motion space and the hydraulic cylinders space. The control system model with DOF control strategy and dynamic model of the shaking tables are built using the Matlab/Simulink and SimMechanics software. Simulation experiments are carried out and the test results indicate that both the control strategies can realize the accurate motion of the platform and verify the feasibility and validity of the proposed control strategies. In the end, this paper compared the two DOF control strategies and analyzed the advantages and disadvantages of each control strategy.
KW - degree of freedom control
KW - electrohydraulic srevo
KW - shaking tables
KW - transformation matrix
UR - http://www.scopus.com/inward/record.url?scp=84962605359&partnerID=8YFLogxK
U2 - 10.1109/FPM.2015.7337166
DO - 10.1109/FPM.2015.7337166
M3 - 会议稿件
AN - SCOPUS:84962605359
T3 - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
SP - 488
EP - 492
BT - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Fluid Power and Mechatronics, FPM 2015
Y2 - 5 August 2015 through 7 August 2015
ER -