Optimal Design of Shape Memory Alloy Damper for Cable Vibration Control

Zuo, Xiao-Bao; Li, Aiqun; Sun, Wei; Sun, Xiang-Hua

doi:10.1177/1077546308094916

Cited by 44 publications

(15 citation statements)

References 17 publications

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“…For an SMA rod with cross section ( A ) subjected to the axial loading ( F ), the stress Hysteresis Behavior of Pre-Strained Shape Memory Alloy Wires Subject to Cyclic Loadings:… DOI: http://dx.doi.org /10.5772/intechopen.88452 is given by σ = F / A . Neglecting thermal expansion, the stress-strain of the SMA rod is computed as [16,17]:…”

Section: Modeling Superelasticity Effect Of Smamentioning

confidence: 99%

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Hysteresis Behavior of Pre-Strained Shape Memory Alloy Wires Subject to Cyclic Loadings: An Experimental Investigation

Zareie¹,

Zabihollah²

2020

Emerging Trends in Mechatronics

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Shape memory alloys (SMAs) are a class of smart materials with the ability to recover their initial shape after releasing the applied load and experiencing a relatively large amount of strain. However, sequential loading and unloading which is an unavoidable issue in many applications significantly reduces the strain recovery of SMA wires. In the present work, experimental tests have been performed to study the pre-strain effect of SMA wires on hysteresis behavior of SMA under cyclic loadings. The effects of cyclic loading on austenite and martensite properties have been investigated. SMA wires with diameter of 1.5 mm and length of 560 mm subjected to about 1000 cycles show about 3 mm residual deformation, which is approximately equal to 0.5% residual strain. It is observed that applying 1.7% prestrain on the SMA wire fully eliminates the residual strain due to cyclic loading.

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Section: Modeling Superelasticity Effect Of Smamentioning

confidence: 99%

“…where E A indicates the modulus of elasticity in austenite phase; similarly, for linear unloading stage where the material is in full martensite phase, modulus of elasticity is defined by E M . For other regions, modulus of elasticity is a combination of E A and E M as the following [16,17]:…”

Section: Modeling Superelasticity Effect Of Smamentioning

confidence: 99%

Hysteresis Behavior of Pre-Strained Shape Memory Alloy Wires Subject to Cyclic Loadings: An Experimental Investigation

Zareie¹,

Zabihollah²

2020

Emerging Trends in Mechatronics

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show abstract

“…The relation between ε T UL and ε T L is expressed by [14]: where σ ms and σ mf are the Martensite phase start stress to the Martensite phase finish stress, correspondingly. Similarly, σ as and σ af denote the Austenite phase start stress and Austenite phase finish stress.…”

Section: Shape Memory Alloymentioning

confidence: 99%

Design and Analysis of SMA-Based Tendon for Marine Structures

Zareie¹,

Zabihollah²

2020

Emerging Trends in Mechatronics

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A tension-leg platform (TLP), as an offshore structure, is a vertically moored floating structure, connecting to tendon groups, fixed to subsea by foundations, to eliminate its vertical movements. TLPs are subjected to various non-deterministic loadings, including winds, currents, and ground motions, keeping the tendons under ongoing cyclic tensions. The powerful loads can affect the characteristics of tendons and cause permanent deformation. As a result of exceeding the strain beyond the elastic phase of the tendons, it makes unbalancing on the floated TLPs. Shape memory alloy (SMA)-based tendons due to their superelasticity properties may potentially resolve such problem in TLP structures. In the present work, performance and functionality of SMA wire, as the main component of SMA-based tendon under cyclic loading, have been experimentally investigated. It shows a significant enhancement in recovering large deformation and reduces the amount of permanent deformation.

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“…2 based on the existing multi-linear models and research by the authors and their associates (Zuo et al, 2004;Zuo et al, 2008;Zuo et al, 2009), where points B and C are the martensite transformation starting point and terminal point, respectively, and points D and A are the autensite transformation starting point and terminal point, respectively. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

A new isolation device using shape memory alloy and its application for long-span structures

Ding

Chen

et al. 2011

Earthq. Eng. Eng. Vib.

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The key points to consider in determining the effectiveness of using structural isolation with shape memory alloys (SMA) are the constitutive model, the SMA isolation device and the analysis method. In this paper, a simplifi ed constitutive model based on the classic theory of plasticity is proposed to simulate the behavior of the superelasticity of the SMA, in which the martensite volume fraction is considered as one of the state variables. Comparisons between simulation results and experimental results are made and indicate that the proposed constitutive model yields stress-strain curves that are in good agreement with the experimental ones. Thus, the proposed model can correctly simulate the yield mechanism and energy dissipation capacity of the SMA. Next, in order to make full use of the superelasticity of SMA, a new SMA isolator composed of pre-tensioned SMA bars is presented. Then, a fi nite element analytical model is established to simulate the behavior of the SMA isolator according to its confi guration and simplifi ed constitutive model. Finally, a simplifi ed design method for long-span structures installed with SMA isolators is proposed, which is further used to investigate the isolation effects of a space grid structure. Results show that the SMA isolator can reduce the seismic responses of the structure effectively, which indicates the effectiveness of the proposed SMA isolation method.

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Optimal Design of Shape Memory Alloy Damper for Cable Vibration Control

Cited by 44 publications

References 17 publications

Hysteresis Behavior of Pre-Strained Shape Memory Alloy Wires Subject to Cyclic Loadings: An Experimental Investigation

Hysteresis Behavior of Pre-Strained Shape Memory Alloy Wires Subject to Cyclic Loadings: An Experimental Investigation

Design and Analysis of SMA-Based Tendon for Marine Structures

A new isolation device using shape memory alloy and its application for long-span structures

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