A review of vibration serviceability criteria for floor structures

Ebrahimpour, Arya; Sack, Ronald L.

doi:10.1016/j.compstruc.2005.03.023

Cited by 90 publications

(54 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Examples of significant vibrations due to human-induced excitations have been found in open-plan floors and footbridges, as well as other structures [1,2]. These structures satisfy ultimate limit state criteria but have the potential of attracting complaints due to excessive human-induced vibrations [3]. Active vibration control (AVC) via inertial-mass actuators has been shown to significantly reduce the level of response, allowing otherwise excessively lively structures to satisfy vibration serviceability limits.…”

Section: Introductionmentioning

confidence: 99%

Optimal control-based methodology for active vibration control of pedestrian structures

Pereira

Díaz

Hudson

et al. 2014

Engineering Structures

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Optimal control-based methodology for active vibration control of pedestrian structures

Pereira

Díaz

Hudson

et al. 2014

Engineering Structures

View full text Add to dashboard Cite

“…Passive, semi-active and active methods are extensively described in literature. A common passive method consist of using dynamic vibration absorbers, also known as tuned mass dampers, constructed with a mass and a spring (or a mass, a spring and a viscous damper), as described in [10,15,16,24,27,34]. Despite its effectiveness when periodic forces are applied, they are limited to some frequency range.…”

Section: Introductionmentioning

confidence: 99%

“…In order to allow an effective operation in a wider force frequency range, [14] proposes the use of multiple degrees of freedom vibration absorbers. Other type of passive solutions can be achieved with the use of resonant circuit shunted piezoeletrics [23,25,27,31], use of viscoelastic materials [10] or shape memory alloys [9]. Alternative techniques, as the use of passive electromagnetic dampers, can be found in [22].…”

Section: Introductionmentioning

confidence: 99%

Vibration control of a flexible structure with electromagnetic actuators

Gruzman

Santos

2015

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

This work presents the model of a shear frame type structure composed of six flexible beams and three rigid masses. Fixed on the ground, outside the structure, two voltage controlled electromagnetic actuators are used for vibration control. To model the flexible beams, unidimensional finite elements were used. Non-linear equations for the actuators electromagnetic force, noise in the position sensor, time delays for the control signal update and voltage saturation were also considered in the model. For controlling purposes a discrete linear quadratic regulator combined with a predictive full-order discrete linear observer was employed. Results of numerical simulations, where the structure is submitted to an impulsive disturbance force and to a harmonic force, show that the oscillations can be significantly reduced with the use of the electromagnetic actuators.

show abstract

“…A state-of-the-art review of technologies (passive, semi-active and active) for mitigation of human-induced vibration can be found in [5]. Furthermore, techniques to cancel floor vibrations (especially passive and semi-active techniques) are reviewed by Ebrahimpour and Sack [6].…”

Section: Introductionmentioning

confidence: 99%

Acceleration feedback control of human-induced floor vibrations

Díaz

Reynolds

2010

Engineering Structures

View full text Add to dashboard Cite

Active vibration control (AVC) via a proof-mass actuator is considered to be a suitable technique for the mitigation of vibrations caused by human motions in floor structures. It has been observed that actuator dynamics strongly influence structure dynamics despite considering collocated actuator/sensor control. The well-known property of the interlacing of poles and zeros of a collocated control system is no longer accomplished. Therefore, velocity-based feedback control, which has been previously used by other researchers, might not be a good solution. This work presents a design process for a control scheme based on acceleration feedback control with a phase-lag compensator, which will generally be different from an integrator circuit. This first-order compensator is applied to the output (acceleration) in such a way that the relative stability and potential damping to be introduced are significantly increased accounting for the interaction between floor and actuator dynamics. Additionally, a high-pass filter designed to avoid stroke saturation is applied to the control signal. The AVC system designed according to this procedure has been assessed in simulation and successfully implemented in an in-service openplan office floor. The actual vibration reductions achieved have been approximately 60% for walking tests and over 90% for a whole-day vibration monitoring.

show abstract

A review of vibration serviceability criteria for floor structures

Cited by 90 publications

References 31 publications

Optimal control-based methodology for active vibration control of pedestrian structures

Optimal control-based methodology for active vibration control of pedestrian structures

Vibration control of a flexible structure with electromagnetic actuators

Acceleration feedback control of human-induced floor vibrations

Contact Info

Product

Resources

About