Uncertainty analysis of an actuator for a shape memory alloy micro-pump with uncertain parameters

摘要

In this paper, we propose a method for taking into account uncertainties of a micro-pump system using Shape Memory Alloy (SMA), based on the perturbation method. The proposed method is used to determine the thermomechanical response of a system. Comparisons with the mean value reference solution, illustrate the efficiency of the proposed method. The results are discussed in order to investigate the influence of the most influential parameters of the thermomechanical SMA model. The simulation results are obtained by the proposed method for static analysis with uncertainties.The perturbation method results are compared with the mean value reference solution. The results are discussed in order to investigate the influence of the Young's modulus E, the two transformations strain magnitude epsilon(T)(trac) and epsilon(TFA)(trac), the martensite start M-s and austenite finish A(f) temperatures and the stress reorientation F-epsilon on the static response of a micro-pump system.