Active Vibration Control of Container Cranes against Earthquake by the Use of LMI Based Mixed H2/H? State-Feedback Controller
Open Access
- 2 March 2015
- journal article
- research article
- Published by Hindawi Limited in Shock and Vibration
- Vol. 2015, 1-13
- https://doi.org/10.1155/2015/589289
Abstract
This paper studies the design of a linear matrix inequality (LMI) based mixedstate-feedback controller for vibration attenuation problem of seismic-excited container cranes. In order to show effectiveness of the designed controller, a six-degree-of-freedom container crane structural system is modeled using a spring-mass-damper subsystem. The system is then simulated against the real ground motion of El Centro and Northridge earthquakes. Finally, the time history of the crane parts displacements, accelerations, control forces, and frequency responses of both uncontrolled and controlled cases are presented. Additionally, the performance of the designed controller is also compared with a nominal state-feedbackcontroller performance. Simulations of the designed controller show better seismic performance than a nominal state-feedbackcontroller. Simulation results show that the designed controller is all effective in reducing vibration amplitudes of crane parts.
Keywords
This publication has 20 references indexed in Scilit:
- Active Vibration Control in Mechanical SystemsMathematical Problems in Engineering, 2014
- Robust Tracking Control for Vehicle Lateral Dynamics with Uncertain Parameters and External NonlinearitiesShock and Vibration, 2014
- Saturated Adaptive Robust Control for Active Suspension SystemsIEEE Transactions on Industrial Electronics, 2012
- Investigation of the Dynamic Behaviors of Cranes under Seismic Effects with Theoretical and Experimental StudyAdvanced Materials Research, 2012
- Active Suspension Control With Frequency Band Constraints and Actuator Input DelayIEEE Transactions on Industrial Electronics, 2011
- Self-tuning fuzzy logic control of crane structures against earthquake induced vibrationNonlinear Dynamics, 2010
- Robust control synthesis for seat suspension systems with actuator saturation and time-varying input delayJournal of Sound and Vibration, 2010
- Input-Delayed Control of Uncertain Seat Suspension Systems With Human-Body ModelIEEE Transactions on Control Systems Technology, 2009
- control for buildings with time delay in control via linear matrix inequalities and genetic algorithmsEngineering Structures, 2008
- Effect of fixed time delay on stability and performance of actively controlled civil engineering structuresEarthquake Engineering & Structural Dynamics, 1997