Passive vibration control in a civil structure: Experimental results

Enríquez-Zárate, J.; Abundis-Fong, H. F.; Velázquez, Ramiro; Gutiérrez, Sebastián

doi:10.1177/0020294019847715

Cited by 18 publications

(9 citation statements)

References 15 publications

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“…For this reason, the performance of vibration mitigation devices is of paramount importance. High levels of uncontrollable vibration can be suppressed through the application of passive, semiactive, or active structural control methods [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Oscillation Attenuation in a Building-like Structure by Using a Flexible Vibration Absorber

et al. 2022

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This is a theoretical, numerical, and experimental study on the vibration attenuation capability of the dynamic response of a building-like structure using a dynamic vibration absorber in cantilever flexible beam configuration, taking into account gravitational effects associated with its mass. The dynamic model of the primary vibrating structure with the passive vibration control device is obtained using the Euler–Lagrange formulation considering the flexible vibration absorber as a generalized system of one degree of freedom. The application of the Hilbert transform to the frequency response function to determine the tuning conditions between this nonlinear flexible beam vibration absorber and the primary system is also proposed. In this fashion, Hilbert transform analysis is then carried out to show that nonlinearities present in the dynamic model do not significantly contribute to the performance of the implemented absorber. Therefore, it is valid to linearize the equations of motion to obtain the tuning condition in which the flexible vibration absorber can attenuate undesirable harmonic vibrations that are disturbing to the building-like flexible structure. Thus, the present study shows that the Hilbert transform can be applied to obtain tuning conditions for other configurations of dynamic vibration absorbers in nonlinear vibrating systems. Simulation and experimental results are included to demonstrate the efficient performance of the presented vibration absorption scheme.

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Section: Introductionmentioning

confidence: 99%

Oscillation Attenuation in a Building-like Structure by Using a Flexible Vibration Absorber

et al. 2022

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“…The vibration control can be designed in time domain and in space. Most researches are on the temporal control design 1,2,[4][5][6][7][8] while relatively fewest researches are on the spatial control design. In terms of structure, to effectively attenuate vibration, damping sandwich structures are designed and studied increasingly.…”

Section: Introductionmentioning

confidence: 99%

Response adjustable performance of a visco-elastomer sandwich plate with harmonic parameters and distributed supported masses under random loading

Ruan

Ying

2022

Measurement and Control

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Vibration control of composite structures with distributed masses under random loadings is a significant issue. Adjustability of dynamic characteristics including response spectrum peaks and valleys is important for structural vibration control. The vibration control design in space contains structure and conformation designs which combination results in periodic composite structures. In the present paper, spatial periodicity control design is proposed. Stochastic response adjustable performance of a visco-elastomer sandwich plate with harmonic distribution of geometrical and physical parameters and distributed supported masses under random base motion loading is studied. Both facial layer thickness and core layer modulus of the sandwich plate are considered as harmonic distribution in length and width directions as well as periodically distributed masses. Partial differential equations of coupling motions of the sandwich plate system are derived and converted into ordinary differential equations for multi-mode coupling vibration. Generalized stiffness, damping, and mass coefficients are functions of the harmonic distribution parameters. An analysis solution with frequency response function and response spectral density expressions of the sandwich plate system is obtained. Numerical results are given to show the response adjustable performance through the harmonic geometrical and physical parameters and distributed masses. The results have a potential application to stochastic vibration control or dynamic optimization design of smart composite structure systems.

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“…In order to prevent undesirable consequences of vibrations, this method modifies, mostly, mass, damping and stiffness properties with regard to initial configuration of the principal structure. Passive control techniques are characterized by implementation of devices in structures that do not require any external energy source to reduce mechanical vibrations [1,2].…”

Section: Introductionmentioning

confidence: 99%

On-Line Modal Parameter Identification Applied to Linear and Nonlinear Vibration Absorbers

et al. 2020

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A solution of the vibration attention problem on a flexible structure from a dynamic vibration absorption perspective is experimentally and numerically studied in this article. Linear and nonlinear dynamic vibration absorbers are properly implemented on a primary structure of n degrees of freedom through a modal decomposition analysis and using the tuning condition when the primary system has one single degree of freedom. A time-domain algebraic identification scheme for on-line modal parameter estimation of flexible structures is presented. A fast frequency estimation of harmonic excitation force is also obtained. A Hilbert transform analysis of the frequency response function for the case of nonlinear dynamic vibration absorption is introduced. In this way, influence of this particular passive nonlinear control device on system dynamic response can be determined. The proposed approach is validated on an harmonically perturbed building-like structure, which is discretized in a finite number of degrees of freedom. The flexible structure is subjected to resonant operational conditions, and coupled to a pendulum vibration absorber configured as a tuned mass damper as well as an autoparametric system.

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Passive vibration control in a civil structure: Experimental results

Cited by 18 publications

References 15 publications

Oscillation Attenuation in a Building-like Structure by Using a Flexible Vibration Absorber

Oscillation Attenuation in a Building-like Structure by Using a Flexible Vibration Absorber

Response adjustable performance of a visco-elastomer sandwich plate with harmonic parameters and distributed supported masses under random loading

On-Line Modal Parameter Identification Applied to Linear and Nonlinear Vibration Absorbers

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