Abstract
This paper introduces a novel geometry for a pure-twisting soft morphing actuator that improves the stability of the actuator and allows it to obtain a larger twisting angle. The smart soft composite (SSC) actuator uses pair of NiTi shape memory alloy (SMA) wires embedded in a cross-shaped polydimethylsiloxane (PDMS) matrix at constant and opposite eccentricity across the cross-section in opposite directions in order to produce a twisting motion. To evaluate the twisting performance of the cross-shaped actuator, specimens with rectangular cross-sections and cross-shaped cross-sections are made and their twist angles are measured and compared. Results show that the cross-shaped actuator is capable of a higher twisting rate by using a thinner flange due to a more stable twisting motion.
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References
Ahn, S. H., Lee, K. T., Kim, H. J., Wu, R., Kim, J. S., and Song, S. H., “Smart Soft Composite: An Integrated 3D Soft Morphing Structure using Bend-Twist Coupling of Anisotropic Materials,” Int. J. Precis. Eng. Manuf., Vol. 13, No. 4, pp. 631–634, 2012.
Barbarino, S., Bilgen, O., Ajaj, R. M., Friswell, M. I., and Inman, D. J., “A Review of Morphing Aircraft,” J. Intell. Mater. Syst. Struct., Vol. 22, No. 9, pp. 823–877, 2011.
Lagoudas, D. and Tadjbakhsh, I., “Active Flexible Rods with Embedded SMA Fibers,” Smart Mater. Struct., Vol. 1, No. 2, pp. 162–167, 1992.
Icardi, U., “Large Bending Actuator Made with SMA Contractile Wires: Theory, Numerical Simulation and Experiments,” Compos. Part B-Eng., Vol. 32, No. 3, pp. 259–267, 2001.
Wang, G. and Shahinpoor, M., “Design, Prototyping and Computer Simulations of a Novel Large Bending Actuator Made with a Shape Memory Alloy Contractile Wire,” Smart Mater. Struct., Vol. 6, No. 2, pp. 214–221, 1997.
Sun, G. and Sun, C. T., “Bending of Shape-Memory Alloy-Reinforced Composite Beam,” J. Mater. Sci., Vol. 30, No. 22, pp. 5750–5754, 1995.
Choi, S. and Lee, J. J., “The Shape Control of a Composite Beam with Embedded Shape Memory Alloy Wire Actuators,” Smart Mater. Struct., Vol. 7, No. 6, pp. 759–770, 1998.
Wang, Z., Hang, G., Wang, Y., Li, J., and Du, W., “Embedded SMA Wire Actuated Biomimetic Fin: a Module for Biomimetic Underwater Propulsion,” Smart Mater. Struct., Vol. 17, No. 2, Paper No. 025039, 2008.
Zhou, G. and Lloyd, P., “Design, Manufacture and Evaluation of Bending Behaviour of Composite Beams Embedded with SMA wires,” Compos. Sci. Technol., Vol. 69, No. 13, pp. 2034–2041, 2009.
Ryu, J. H., Jung, B. S., Kim, M. S., Kong, J. P., Cho, M. H., and Ahn, S. H., “Numerical Simulation of Hybrid Composite Shape-Memory Alloy Wire-Embedded Structures,” J. Intell. Mater. Syst. Struct., Vol. 22, No. 17, pp. 1941–1948, 2011.
Jung, B. S., Kong, J. P., Li, N. X., Kim, Y. M., Kim, M. S., Ahn, S. H., and Cho, M. H., “Numerical Simulation and Verification of a Curved Morphing Composite Structure with Embedded Shape Memory Alloy Wire Actuators,” J. Intell. Mater. Syst. Struct., Vol. 24, No. 1, pp. 89–98, 2012.
Spinella, I., Scirè Mammano, G., and Dragoni, E., “Conceptual Design and Simulation of a Compact Shape Memory Actuator for Rotary Motion,” J. Mater. Eng. Perform., Vol. 18, No. 5–6, pp. 638–648, 2009.
Paik, J. K., Hawkes, E., and Wood, R. J., “A Novel Low-Profile Shape Memory Alloy Torsional Actuator,” Smart Mater. Struct., Vol. 19, No. 12, Paper No. 125014, 2010.
Kim, H. J., Song, S. H., and Ahn, S. H., “A Turtle-Like Swimming Robot using a Smart Soft Composite (SSC) Structure,” Smart Mater. Struct., Vol. 22, No. 1, Paper No. 014007, 2013.
Dynalloy, Inc., “FLEXINOL® Actuator Wire Technical and Design Data,” http://www.dynalloy.com/TechDataWire.php.html (Accessed 30 Oct. 2013)
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Rodrigue, H., Wang, W., Bhandari, B. et al. Cross-shaped twisting structure using SMA-based smart soft composite. Int. J. of Precis. Eng. and Manuf.-Green Tech. 1, 153–156 (2014). https://doi.org/10.1007/s40684-014-0020-5
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DOI: https://doi.org/10.1007/s40684-014-0020-5