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Comparison Among Different Modular SMA Actuated Flexible Fingers

  • Daniela MaffiodoEmail author
  • Terenziano Raparelli
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 68)

Abstract

Four prototypes of a flexible finger, each made up of three actuator modules based on shape memory alloy (SMA) wires, are experimentally studied in this research. A module is basically composed by few simple components: a plastic body, made of different materials, and SMA wires. The bending of the module is performed with the heating and cooling of the SMA wires and the central rod exerts bias force, necessary to the stretching of the wire to the original shape. To evaluate the actuator workspace different tests were performed, and the results of three prototypes are compared. Finally a more complex prototype in which the antagonist wires can be deactivated during the working cycle was designed and preliminary tests were performed, obtaining encouraging results.

Keywords

Shape memory alloy SMA wires Flexible actuator Modular actuator Experimental test 

References

  1. 1.
    Raparelli, T., Zobel, P.B., Durante, F.: Mechanical design of a 3-dof parallel robot actuated by smart wires. In: Proceedings of EUCOMES 2008 - The 2nd European Conference on Mechanism Science, pp. 271–278 (2009).  https://doi.org/10.1007/978-1-4020-8915-2_33
  2. 2.
    Raparelli, T., Zobel, P.B., Durante, F.: A proposed methodology for the development of microgrippers: an application to a silicon device actuated by shape memory alloy wires. Int. J. Mech. Eng. Technol. 9(2), 235–249 (2018)Google Scholar
  3. 3.
    Lee, K-T., Lee, G-Y., Choi, J-O., Wu, R., Ahn, S-H.: Design and fabrication of a smart flexible structure using Shape Memory Alloy Wire (SMA). In: Proceedings of the 2010 3rd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, pp. 599–603 (2010)Google Scholar
  4. 4.
    Wang, Z., Hang, G., Li, J., Wang, Y., Xiao, K.: A micro-robot fish with embedded SMA wire actuated flexible biomimetic fin. Sens. Actuators, A 144, 354–360 (2008)CrossRefGoogle Scholar
  5. 5.
    Maffiodo, D., Raparelli, T.: Three-fingered gripper with flexure hinges actuated by shape memory alloy wires. International Journal of Automation Technology 11(3), 355–360 (2017). https://doi.org/10.20965/ijat.2017.p0355CrossRefGoogle Scholar
  6. 6.
    Ikuta, K.: Micro/miniature shape memory alloy actuator. In: Proceedings IEEE International Conference on Robotics and Automation, vol. 3, pp. 2156–2161 (1990).  https://doi.org/10.1109/robot.1990.126323
  7. 7.
    Shameli, E., Alasty, A., Salaarieh, H.: Stability analysis and nonlinear control of a miniature shape memory alloy actuatorfor precise applications. Mechatronics 15, 471–486 (2005)CrossRefGoogle Scholar
  8. 8.
    Choi, S.B., Han, Y.M., Kim, J.H., Cheong, C.C.: Force tracking control of a flexible gripper featuring shape memory alloy actuators. Mechatronics 11(6), 677–690 (2001). https://doi.org/10.1016/S0957-4158(00)00034-9. ISSN 0957-4158CrossRefGoogle Scholar
  9. 9.
    Maffiodo, D., Raparelli, T.: Resistance feedback of a shape memory alloy wire. Adv. Intell. Syst. Comput. 371, 97–104 (2016).  https://doi.org/10.1007/978-3-319-21290-6_10CrossRefGoogle Scholar
  10. 10.
    Yang, K., Gu, C.L.: A compact and flexible actuator based on shape memory alloy springs. J. Mech. Eng. Sci. 222, 1329–1337 (2008)CrossRefGoogle Scholar
  11. 11.
    Torres-Jara, E., Gilpin, K., Karges, J., Wood, R.J., Russ, D.: Compliant modular shape memory alloy actuators. IEEE Robot. Autom. Mag. 17(4), 78–87 (2010)CrossRefGoogle Scholar
  12. 12.
    Maffiodo, D., Raparelli, T.: Design and realization of a flexible finger actuated by shape memory alloy (SMA) wires. Int. J. Appl. Eng. Res. 12(24), 15635–15643 (2017)Google Scholar
  13. 13.
    Maffiodo, D., Raparelli, T.: Experimental testing of a modular flexible actuator based on SMA wires. Int. J. Appl. Eng. Res. 13(2), 1465–1471 (2018)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.DIMEASPolitecnico di TorinoTurinItaly

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