Nonlinear dynamics of a SMA passive vibration damping device

Luciano G. Machado; Dimitris C. Lagoudas

doi:10.1117/12.658062

17 March 2006 Nonlinear dynamics of a SMA passive vibration damping device

Luciano G. Machado, Dimitris C. Lagoudas

Proceedings Volume 6169, Smart Structures and Materials 2006: Damping and Isolation; 61690X (2006) https://doi.org/10.1117/12.658062
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

This work investigates numerically and experimentally the nonlinear vibration of a Shape Memory Alloy (SMA)passive damping vibration device, where the main elements are pseudoelastic SMA wires. At first, a one-degree of freedom SMA oscillator, composed of a mass balanced by two pseudoelastic SMA wires, where the configuration was based on the SMA passive damping vibration device, was considered. A thermomechanical constitutive model, based on the thermodynamic framework proposed by Boyd and Lagoudas, was used to predict the constitutive behavior of the SMA wires. The mechanical model was supplemented by simple heat transfer analysis, so that temperature variations caused by martensitic phase transformation and the effect of different frequency responses could be investigated. Numerical simulations of transmissibility curves and temperature variations of SMA oscillator are correlated with experimental results obtained from vibration sine sweep tests.

Citation Download Citation

Luciano G. Machado and Dimitris C. Lagoudas "Nonlinear dynamics of a SMA passive vibration damping device", Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 61690X (17 March 2006); https://doi.org/10.1117/12.658062

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