Design, Characterization, and Finite-Element Optimization of a Two-Way Assisted Through SuperElasticity Torsion Actuator
نویسندگان
چکیده
The present study aims at developing a new Shape Memory Alloy (SMA) autonomous torsion actuator that exhibits Two-Way reversible memory effect Assisted by SuperElasticity. developed noted hereafter TWASE is composed single NiTi compact component having two distinct SMAs parts on one axis: SuperElastic part (length LSE) and Effect LSME). proposed design ensures twisting the when heated, this activates then superelastic putting back into its original shape as result of decrease in temperature. Hence, moves goes to initial position autonomously (self-reversible). It has been established actuation efficiency strongly dependent length ratio (λSME) SME with respect total actuator. Experimentally, an 3/5 tested. actuator’s axis subjected specific heat treatment for obtaining SMA wire zones. A FE analysis using proper UMAT subroutine Abaqus software performed predict kinematics thermomechanical response finally optimize it accordingly. computational model captures responses subsequent optimizations are carried out leading improved specifications, which confirmed experimentally. experimental validation prototype set-up bench built 3D printing. numerically analyzed several configurations. Based numerical simulations, performance optimized terms rotation angle ratio. best predicted 1/4 expected two-way (TWASE).
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ژورنال
عنوان ژورنال: Shape memory and superelasticity
سال: 2022
ISSN: ['2199-384X', '2199-3858']
DOI: https://doi.org/10.1007/s40830-022-00395-w