Modeling and development of a twisting wing using inductively heated shape memory alloy actuators

Robert N. Saunders; Darren J. Hartl; James G. Boyd; Dimitris C. Lagoudas

doi:10.1117/12.2175692

2 April 2015 Modeling and development of a twisting wing using inductively heated shape memory alloy actuators

Robert N. Saunders, Darren J. Hartl, James G. Boyd, Dimitris C. Lagoudas

Proceedings Volume 9431, Active and Passive Smart Structures and Integrated Systems 2015; 94310U (2015) https://doi.org/10.1117/12.2175692
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

Wing twisting has been shown to improve aircraft flight performance. The potential benefits of a twisting wing are often outweighed by the mass of the system required to twist the wing. Shape memory alloy (SMA) actuators repeatedly demonstrate abilities and properties that are ideal for aerospace actuation systems. Recent advances have shown an SMA torsional actuator that can be manufactured and trained with the ability to generate large twisting deformations under substantial loading. The primary disadvantage of implementing large SMA actuators has been their slow actuation time compared to conventional actuators. However, inductive heating of an SMA actuator allows it to generate a full actuation cycle in just seconds rather than minutes while still . The aim of this work is to demonstrate an experimental wing being twisted to approximately 10 degrees by using an inductively heated SMA torsional actuator. This study also considers a 3-D electromagnetic thermo-mechanical model of the SMA-wing system and compare these results to experiments to demonstrate modeling capabilities.

Citation Download Citation

Robert N. Saunders, Darren J. Hartl, James G. Boyd, and Dimitris C. Lagoudas "Modeling and development of a twisting wing using inductively heated shape memory alloy actuators", Proc. SPIE 9431, Active and Passive Smart Structures and Integrated Systems 2015, 94310U (2 April 2015); https://doi.org/10.1117/12.2175692

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