Plate with decentralised velocity feedback loops: Power absorption and kinetic energy considerations

Gardonio, Paolo; Miani, Stefano; Blanchini, Franco; Casagrande, Daniele; Elliott, Stephen J.

doi:10.1016/j.jsv.2011.12.013

Cited by 33 publications

(33 citation statements)

References 21 publications

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“…The objective of noise reduction through electromagnetic transducers is to limit undesired vibrations applying an external force obtained, in a straightforward solution, as a feedback control [2,3]. Kinetic energy of the structure is analysed as noise level index and its minimisation is pursued by means of an active damping feedback control proportional to the plant local velocity [4,5]. The amount of force available makes these devices act locally which suggests the use of multiple actuators in centralised [3] and decentralised [6] configurations.…”

Section: Introductionmentioning

confidence: 99%

“…The latter ones, instead, introduce a more complex dynamic interaction given by the moving mass of the inertial actuator with risk of instability, nevertheless they represent a more flexible solution. Minimisation of the global plant kinetic energy provides valuable performance in terms of vibration reduction [5], but it cannot be adopted when the information about the global structure is not available such as in decentralised control. For this reason, alternative solutions have been analysed to tune the feedback gain in such a way to obtain valuable results in decentralised architectures.…”

Section: Introductionmentioning

confidence: 99%

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Active vibration control of an inertial actuator subject to broadband excitation

Camperi

Ghanchi-Tehrani

Zilletti

et al. 2016

J. Phys.: Conf. Ser.

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Active vibration control of an inertial actuator subject to broadband excitation S Camperi, M Ghanchi-Tehrani, M Zilletti et al. Abstract. Active vibration control has been widely used in many engineering applications in order to minimise vibrations in structures, when subjected to broadband random disturbances. Feedback control in the form of velocity feedback is considered in this paper, which generates a damping force proportional to the velocity. The control gain is tuned in such a way to minimise the kinetic energy of the system. In this paper, an inertial actuator excited by a random voltage is considered and an active control is implemented. The dynamic equations of the system are derived and the response is obtained with and without control. The stability of the system is analysed using the Nyquist plot. The response of the actuator is obtained from time domain simulations using Matlab. The effect of the control gains are also investigated on the responses. Energy analysis shows how the energy in the system decreases by increasing the feedback gain up to a stability limit.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Active vibration control of an inertial actuator subject to broadband excitation

Camperi

Ghanchi-Tehrani

Zilletti

et al. 2016

J. Phys.: Conf. Ser.

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“…It was proved numerically and experimentally that maximizing the energy absorption of the actuator has a similar feedback gain to minimizing the kinetic energy. Reference [10] further analyzed the energy absorption of force actuators both in frequency domain formulation and time domain formulation, to figure out the conditions under which the minimum of kinetic energy and the maximum of absorbed energy could match. Recently, reference [11] showed that the optimization of the natural frequencies of the inertial actuator, its mechanical damping and the feedback gain, that maximize the power absorbed by the controller or minimize the kinetic energy of the host structure, are equivalent.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of virtual absorbed energy of piezoelectric patch actuators in decentralized velocity feedback control of a plate

Sun

Cao

et al. 2015

Journal of Sound and Vibration

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“…Its applications are manifold and include drives [1], active suspensions [2] but also biomedical applications such as modeling the human body [3] and applications in sound [4].…”

Section: Introductionmentioning

confidence: 99%

Fractional-order feedback control of a poorly damped system

Chevalier

Copot

et al. 2014

2014 IEEE International Conference on Automation, Quality and Testing, Robotics

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Abstract-This study presents the design of a fractionalorder proportional-integral (FOPI) controller for a mass-springdamper system which is poorly damped. A model based design technique is used to design a FOPI controller for this system. A good performance of the closed loop control of a high order oscillatory system, such as the mass-spring-damper system, is with traditional proportional-integral (PI) controllers difficult to achieve. Therefore, a comparison between a traditional PI controller and a FOPI controller is performed by simulation. The simulation results show that the FOPI controller outperforms the classical PI controller resulting in an increased damping of the oscillations while maintaining a reasonable control effort.

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Plate with decentralised velocity feedback loops: Power absorption and kinetic energy considerations

Cited by 33 publications

References 21 publications

Active vibration control of an inertial actuator subject to broadband excitation

Active vibration control of an inertial actuator subject to broadband excitation

Experimental validation of virtual absorbed energy of piezoelectric patch actuators in decentralized velocity feedback control of a plate

Fractional-order feedback control of a poorly damped system

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