Force Feedback Versus Acceleration Feedback in Active Vibration Isolation

Preumont, André; François, Arnaud; Bossens, Frédéric; Hanieh, Ahmed Abu

doi:10.1006/jsvi.2002.5047

Cited by 98 publications

(73 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concept of integrated force feedback control is suitable when an active unit is placed in series with a deformable structural element. It has been effectively employed by Preumont and co-workers for active control of piezoelectric struts [20], in tendon control applications [21] and in a base-isolation system [22]. Modified integral force feedback formats have recently been considered for damping of structures by a piezoelectric transducer [23] or a hybrid viscous damper [24].…”

Section: Introductionmentioning

confidence: 99%

Resonant passive–active vibration absorber with integrated force feedback control

Høgsberg

Brodersen

Krenk

2016

Smart Mater. Struct.

View full text Add to dashboard Cite

A general format of a two-terminal vibration absorber is constructed by placing a passive unit in series with a hybrid unit, composed of an active actuator in parallel with a second passive element. The displacement of the active actuator is controlled by an integrated feedback control with the difference in force between the two passive elements as input. This format allows passive and active contributions to be combined arbitrarily within the hybrid unit, which results in a versatile absorber format with guaranteed closed-loop stability. This is demonstrated for resonant absorbers with inertia realized passively by a mechanical inerter or actively by the integrated force feedback. Accurate calibration formulae are presented for two particular absorber configurations and the performance is subsequently demonstrated with respect to both equal modal damping and effective response reduction.

show abstract

Section: Introductionmentioning

confidence: 99%

Resonant passive–active vibration absorber with integrated force feedback control

Høgsberg

Brodersen

Krenk

2016

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Fuller et al, discussed various control strategies including feedforward and feedback concepts for vibration isolation systems [3]. Preumont et al, analyzed the difference between force feedback and acceleration feedback of a skyhook damper by the root locus method [4].…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of a VCM-Based Stewart Parallel Mechanism Used for Active Vibration Isolation

et al. 2015

View full text Add to dashboard Cite

This paper presents the design and experimental study of a voice coil motor (VCM)-based Stewart platform used for active vibration isolation. The high precision payloads carried on the satellites always require an extremely stable environment to work properly. Installing a vibration isolation device between the vibration sources and precision payloads is an efficient method for dissipating vibration energy. A Stewart platform with active damping is designed to isolate the vibration transferring from the satellite to the payloads in six degrees-of-freedom. First, the kinematics and dynamical equations of a Stewart platform with spherical joints at both the base and top of each leg are established with Newton-Euler Method in task space and joint space. Second, the H∞ Control Theory is employed to design a robust controller for the linearized system with parameter uncertainty, noise and sensor errors. Finally, an experimentation study on the vibration of the payload supported by a Stewart platform with VCM actuator is conducted. The feasibility and effectiveness of the vibration isolation system are verified by comparing the amplitude-frequency characteristics of the active control system with that of the passive control system and the system without damping.

show abstract

“…Many different control strategies were proposed, such as the blended velocity feedback [1], the fusion with the force signal and the acceleration signal [2]，the PID control, state feedback control and the H∞ control etc [3] to improve the vibration isolation performance of the isolator and the advantages and disadvantages of different control strategies were discussed [4]. On the basis of the above, the dual closed-loop controller with the modified PID is introduced for the optimal bi-layer structure.…”

Section: Introductionmentioning

confidence: 99%

The research on the active vibration isolator

Guo¹,

Zhang²,

Meng³

2015

Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy

View full text Add to dashboard Cite

Abstract:The effect on the high-precision imaging load because of the vibrations from the satellite platforms is becoming more and more non negligible. In the paper, the bi-layer structure mixed with passive part and active part is adopted for the leg and the location of the actuator is studied. As for the control algorithm, the loop-shaping approach is introduced. Additionally, the cross-coupling control strategy is adopted to improve the vibration isolation performance for the vibration isolator with two legs.

show abstract

Force Feedback Versus Acceleration Feedback in Active Vibration Isolation

Cited by 98 publications

References 4 publications

Resonant passive–active vibration absorber with integrated force feedback control

Resonant passive–active vibration absorber with integrated force feedback control

Design and Experimental Study of a VCM-Based Stewart Parallel Mechanism Used for Active Vibration Isolation

The research on the active vibration isolator

Contact Info

Product

Resources

About