State Feedback Controller for LNG Storage Tank System using Pole Placement Method
Dashrath S. Panchal, Sardar Vallabhbhai Patel Institute of Technology; Devesh P. Soni ,Sardar Vallabhbhai Patel Institute of Technology; Dipesh H. Shah ,Sardar Vallabhbhai Patel Institute of Technology
State Feedback Control, Magneto - Rheological Damper, Pole Placement Method
In this paper seismic control problem is discussed for an extra-large Liquefied Natural Gas (LNG) storage tank using smart base-isolation. The seismic forces are reduced by isolating LNG tank from ground through laminated isolation bearing made from natural rubber. Magneto-rheological (MR) dampers are installed to control the excessive displacement of LNG tank system. The MR dampers are commended by state feedback controller designed using pole placement method. The efficacy and effectiveness of derived control algorithm are presented and compared with uncontrolled system for past three earthquake ground motion. The simulation results showed that the state feedback control strategy is more effective in reducing the structural responses as compared to uncontrolled system.
-
[1] Dunkerley S. (1894), “On the Whirling and Vibration of Shaft.” Philosophical Transactions of the Royal Society of London, 185: 279-360.
[2] Malhotra, P.K., Wenk T., and Wieland M. (2000), “Simple Procedure for Seismic Analysis of LiquidStorage Tanks.”Structural Engineering International,
[3] Jansen, M., and Dyke, J. (2000), “Semi-active Control Strategies for MR Dampers: Comparative Study.”Journal of Engineering Mechanics, ASCE, Vol.126, no.8
[4] Iemura, H., Igarashi A., and Kalantari A (2004),. “Enhancing Dynamic Performance of Liquid Storage Tanks by Semi-Active Controlled Dampers.” 13th World Conference on Earthquake Engineering, Paper No. 773.
[5] Jin, B., Jeon, S., Kim, S., Kim, Y., and Chung C.( 2004),“Earthquake Response Analysis Of LNG Storage Tank By Axisymmetric Finite Element Model And Comparison To The Results Of The Simple Model.” 13th World Conference on Earthquake Engineering, Paper No. 394.
[6] Douglas, H., Rotzer, J., and Maurer, H. (2005), “Hazard and Safety Investigations for LNG Tanks.” LNG Journal, pp 23-24.
[7] Dotoli, R., Lisi, D., and Bardaro, D. (2007). “Sloshing Response Of LNG Storage Tank Subjected To Seismic Loading.” 6th European LS-DYNA Users’ Conference.
[8] Lee, K., Kim, J., and Seo, H. (2010), “Seismic Response of LNG Storage Tank under Different Base Conditions and Liquid Height.” The International Society of Offshore and Polar Engineers (ISOPE), ISBN 978.
[9] Bharti, S. D., Dumne, S. M., and Shrimali, M. K. (2010), “Seismic response analysis of adjacent buildings connected with MR dampers.” Engineering Structures 32, pp. 2122 – 2133.
[10] Ruifu, Z., Dagen, W., and Xiaosong, R. (2011), “Seismic analysis of a LNG storage tank isolated by a multiple friction pendulum system.” Earthquake Engineering and Engineering Vibration, Vol.10, No.2, pp. 253-262.
[11] Dipesh H. Shah, Krupa D. Narwekar, (2013)”Implementing State Feedback Controller on Three-Tank Mixing Process” Journal of Control & Instrumentation, Volume 4, Issue 3, ISSN: 2229-6972.
[12] Dipesh H. Shah (2013),”Modeling and Design of State Feedback with Integral Controller for TRMS (Twin-Rotor MIMO System)”, Journal of Control & Instrumentation, Volume 4, Issue 3, ISSN: 2229-6972.
[13] Chowdhury Andalib Bin Karim, Muhammad Ahsan Zamee, (2014)” Design and Analysis of Pole-Placement Controller for Dynamic Stability Improvement of VSC-HVDC based Power System” The 9th International Forum on Strategic Technology (IFOST), October 21-23, Cox’s Bazar, Bangladesh.
[14] Yan Lan, Fei Minrui(2011),”Design of State-feedback Controller by Pole Placement for a Coupled Set of Inverted Pendulums”, The Tenth International Conference on Electronic Measurement & Instruments, 978-1-4244-8161-3.
Paper ID: GRDCF012032
Published in: Conference : Emerging Research and Innovations in Civil Engineering
Page(s): 151 - 155
Published in: Conference : Emerging Research and Innovations in Civil Engineering
Page(s): 151 - 155