Experimental investigation of vibration reduction using shape memory alloys

Aguiar, Ricardo Alexandre Amar de; Savi, Marcelo A.; Pacheco, Pedro Manuel Calas Lopes

doi:10.1177/1045389x12461696

Cited by 53 publications

(35 citation statements)

References 24 publications

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“…Savi et al [18] discussed the general aspects of adaptive behavior of ATVA. Aguiar et al [24] confirmed these conclusions from an experimental point of view.…”

Section: Numerical Simulationssupporting

confidence: 78%

Dynamical Behavior of a Pseudoelastic Vibration Absorber Using Shape Memory Alloys

Oliveira

Paula

Savi

2017

Shock and Vibration

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The tuned vibration absorber (TVA) provides vibration reduction of a primary system subjected to external excitation. The idea is to increase the number of system degrees of freedom connecting a secondary system to the primary system. This procedure promotes vibration reduction at its design forcing frequency but two new resonance peaks appear introducing critical behaviors that must be avoided. The use of shape memory alloys (SMAs) can improve the performance of the classical TVA establishing an adaptive TVA (ATVA). This paper deals with the nonlinear dynamics of a passive pseudoelastic tuned vibration absorber with an SMA element. In this regard, a single degree of freedom elastic oscillator is used to represent the primary system, while an extra oscillator with an SMA element represents the secondary system. Temperature dependent behavior of the system allows one to change the system response avoiding undesirable responses. Nevertheless, hysteretic behavior introduces complex characteristics to the system dynamics. The influence of the hysteretic behavior due to stress-induced phase transformation is investigated. The ATVA performance is evaluated by analyzing primary system maximum vibration amplitudes for different forcing amplitudes and frequencies. Numerical simulations establish comparisons of the ATVA results with those obtained from the classical TVA. A parametric study is developed showing the best performance conditions and this information can be useful for design purposes.

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“…Savi et al [18] discussed the general aspects of adaptive behavior of ATVA. Aguiar et al [24] confirmed these conclusions from an experimental point of view.…”

Section: Numerical Simulationssupporting

confidence: 78%

Dynamical Behavior of a Pseudoelastic Vibration Absorber Using Shape Memory Alloys

Oliveira

Paula

Savi

2017

Shock and Vibration

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“…The former means returning back to the predetermined shapes upon heating. The latter is related to the large amount of inelastic deformation which can be recovering after unloading (Aguiar and Savi, 2013). Composites are being increasingly used in aerospace, marine and civil due to the advantages they offer.…”

Section: Introductionmentioning

confidence: 99%

Free Vibration of Laminated Composite Plate with Shape Memory Alloy Fibers

Mahabadi

Shakeri

Pazhooh

2016

Lat. Am. j. solids struct.

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In the present study, an analytical closed form solution for free vibration response of hybrid composite plate reinforced with shape memory alloy (SMA) fibers is derived. Recovery stresses generated during martensitic phase transformation are obtained based on onedimensional Brinson's model. The mechanical properties of plate are assumed to be temperature dependent. Based on the first-order shear deformation theory (FSDT) the governing equations are obtained via Hamilton's principle. Ritz method is used to obtain the fundamental natural frequency of the plate for different temperatures. A detailed parametric analysis shows the strong influence of the volume fraction, pre-strain, orientation and location of SMA fibers as well as the aspect ratio of the plate on the fundamental natural frequency and the onset of the thermal buckling.

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“…This phase change can be manipulated by controlling the temperature of the SMA [52][53][54][55][56], such as through an electrical current [57]. Many researchers have taken advantage of this unique property to develop adaptive TMDs in active and semi-active control schemes to enhance the damping capabilities of the TMDs [58][59][60][61]. However, SMAs have been never used in a PTMD before.…”

Section: Introductionmentioning

confidence: 99%

Implementation of Shape Memory Alloy Sponge as Energy Dissipating Material on Pounding Tuned Mass Damper: An Experimental Investigation

et al. 2019

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Piping systems are important nonstructural components of most types of buildings. Damage to piping systems can lead to significant economic losses, casualties, and interruption of function. A survey of earthquake disaster sites shows that suspended piping systems are flexible and thus prone to large deformation, which can lead to serious damage of the piping systems. The single-sided pounding tuned mass damper (PTMD), which is an emerging vibration suppression tool, has the potential to serve as a cost effective and non-invasive solution for the mitigation of vibration in suspended piping systems. The operating frequency of the single-sided PTMD can be tuned similarly to a tuned mass damper (TMD). The single-side PTMD also possesses high energy dissipation characteristics and has demonstrated outstanding performance in vibration control. One of the key factors affecting the performance of the PTMD is the damping material, and there is a constant search for the ideal type of material that can increase the performance of the PTMD. This paper explores the use of shape memory alloy (SMA) sponge as the damping material for two types (spring steel and pendulum types) of PTMDs to mitigate the vibration of a suspended piping system. The PTMDs are tested both in free vibration and in forced vibration. The results are compared with no control, with a TMD control, and with a viscoelastic (VE) material PTMD control. The results show that in free vibration tests, SMA–PTMDs attenuate the displacement of the piping system significantly. The time to mitigate vibration (i.e., reduce 90% of the vibration amplitude) is reduced to 6% (for spring steel type) and 11% (for pendulum type) of the time taken to mitigate vibration without control. In forced vibration tests, the overall magnitudes of the frequency response are also lowered to 38% (spring steel) and 44% (pendulum) compared to vibration without control. The results indicate that SMA has the potential to be a promising energy dissipating material for PTMDs.

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Experimental investigation of vibration reduction using shape memory alloys

Cited by 53 publications

References 24 publications

Dynamical Behavior of a Pseudoelastic Vibration Absorber Using Shape Memory Alloys

Dynamical Behavior of a Pseudoelastic Vibration Absorber Using Shape Memory Alloys

Free Vibration of Laminated Composite Plate with Shape Memory Alloy Fibers

Implementation of Shape Memory Alloy Sponge as Energy Dissipating Material on Pounding Tuned Mass Damper: An Experimental Investigation

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