Experimental study of delayed feedback control for a flexible plate

Chen, Longxiang; Cai, Guo‐Ping; Pan, Jingxue

doi:10.1016/j.jsv.2008.11.045

Cited by 51 publications

(41 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two direct design methods 7,12 are to design a timedelay controller directly from a time-delay differential equation and no assumption is made in the entire design process and they are suitable for both small and large time delays. Cai and Chen 8,13 verified these two methods by conducting an experiment using several flexible structures as research objects. Nowadays, time delay problems in robust H ∞ control have come to the attention of many researchers.…”

Section: Introductionmentioning

confidence: 86%

Robust H-infinity Control of Building Structures with Time Delay

Liu¹,

Chen²,

Cai³

et al. 2017

IJAV

Self Cite

View full text Add to dashboard Cite

In this paper, a robust H ∞ controller for a building structure with a time delay is studied. Firstly, the motion equation of the structural system with an explicit time delay is introduced. Then, the state space representation of a dynamic equation without any explicit time delay is deduced by a specific integral transformation to the time-delay equation. Secondly, a robust control method is applied to the H ∞ time-delay controller design and, due to the compensation of the time delay, the proposed controller contains not only the state term of the current step, but also a linear combination of some former steps of the control. Finally, numerical simulations and comparisons of a six-story building using the proposed time-delay controller are carried out. The simulation results indicate that the control performance will deteriorate if the time delay is not taken into account in the control design. The proposed H ∞ time-delay controller in this paper can effectively compensate for a time delay in order to get better control effectiveness. Besides, this delay controller is robust to both structural parameter and time delay uncertainties.

show abstract

Section: Introductionmentioning

confidence: 86%

Robust H-infinity Control of Building Structures with Time Delay

Liu¹,

Chen²,

Cai³

et al. 2017

IJAV

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the control design, the weighting matrix and the coefficient in Eq. (16) are chosen as Q = diag(100, 1) and R = 60. By using the PZT actuator to control the beam vibration, the tip response of the beam is given in Fig.…”

Section: Numerical Simulationsmentioning

confidence: 99%

Model reduction and active control of flexible beam using internal balance technique

Xie

Zhao

Cai

2011

Appl. Math. Mech.-Engl. Ed.

Self Cite

View full text Add to dashboard Cite

The internal balance technique is effective for the model reduction in flexible structures, especially the ones with dense frequencies. However, due to the difficulty in extracting the internal balance modal coordinates from the physical sensor readings, research on this topic has been mostly theoretical so far, and little has been done in experiments or engineering applications. This paper studies the internal balance method theoretically as well as experimentally and designs an active controller based on the reduction model. The research works on a digital signal processor (DSP) TMS320F2812-based experiment system with a flexible beam and proposes an approximate approach to access the internal balance modal coordinates. The simulation and test results have shown that the proposed approach is feasible and effective, and the designed controller is successful in restraining the beam vibration.

show abstract

“…Qiu et al (2007) and Zhang and Erdman (2006) combined controllability and observability methods to optimize the locations of piezoelectric actuators and sensors for active vibration control of building floors. Chen et al (2009) used the particle swarm optimizer to determine the positions of piezoelectric actuators for active vibration control of plates.…”

Section: Optimal Placement Of Sensors and Actuatorsmentioning

confidence: 99%

The Application of Piezoelectric Materials in Smart Structures in China

Qiu¹,

Ji²

2010

International Journal of Aeronautical and Space Sciences

View full text Add to dashboard Cite

Piezoelectric materials have become the most attractive functional materials for sensors and actuators in smart structures because they can directly convert mechanical energy to electrical energy and vise versa. They have excellent electromechanical coupling characteristics and excellent frequency response. In this article, the research activities and achievements on the applications of piezoelectric materials in smart structures in China, including vibration control, noise control, energy harvesting, structural health monitoring, and hysteresis control, are introduced. Special attention is given to the introduction of semi-active vibration suppression based on a synchronized switching technique and piezoelectric fibers with metal cores for health monitoring. Such mechanisms are relatively new and possess great potential for future applications in aerospace engineering.

show abstract

Experimental study of delayed feedback control for a flexible plate

Cited by 51 publications

References 17 publications

Robust H-infinity Control of Building Structures with Time Delay

Robust H-infinity Control of Building Structures with Time Delay

Model reduction and active control of flexible beam using internal balance technique

The Application of Piezoelectric Materials in Smart Structures in China

Contact Info

Product

Resources

About