ArticleMaterials (Basel, Switzerland)2018
Design of Shape Memory Alloy Coil Spring Actuator for Improving Performance in Cyclic Actuation.
Article in Materials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Shape Memory Alloys Patches to Mimic Rolling, Sliding, and Spinning Movements of the Knee.Biomimetics (Basel, Switzerland) · 2024Article
- Design and Evaluation of Smart Textile Actuator with Chain Structure.Materials (Basel, Switzerland) · 2023Article
- Self-Sensing Variable Stiffness Actuation of Shape Memory Coil by an Inferential Soft Sensor.Sensors (Basel, Switzerland) · 2023Article
- Molecular Dynamics Simulations of PtTi High-Temperature Shape Memory Alloys Based on a Modified Embedded-Atom Method Interatomic Potential.Materials (Basel, Switzerland) · 2022Article
- Actuating compact wearable augmented reality devices by multifunctional artificial muscle.Nature communications · 2022Article
- The Study of New NiTi Actuators to Reinforce the Wing Movement of Aircraft Systems.Materials (Basel, Switzerland) · 2022Article
- Modeling and Position Control Simulation Research on Shape Memory Alloy Spring Actuator.Micromachines · 2022Article
- Simulation of Shape Memory Alloy (SMA)-Bias Spring Actuation for Self-Shaping Architecture: Investigation of Parametric Sensitivity.Materials (Basel, Switzerland) · 2020Article
- Development of Smart Textile Materials with Shape Memory Alloys for Application in Protective Clothing.Materials (Basel, Switzerland) · 2020Article
- Hybrid Shape Memory Alloy-Based Nanomechanical Resonators for Ultrathin Film Elastic Properties Determination and Heavy Mass Spectrometry.Materials (Basel, Switzerland) · 2019Article
- Overview and Future Advanced Engineering Applications for Morphing Surfaces by Shape Memory Alloy Materials.Materials (Basel, Switzerland) · 2019Review
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Abstract
Performance of the shape memory alloy (SMA) coil spring actuator in cyclic actuation as an artificial muscle is strongly related to the mechanical design of the coil geometry. This paper proposes a practical design method for improving the frequency and efficiency of the SMA coil spring actuator; by designing the SMA coil spring to have large index (coil diameter/wire diameter) and pitch angle (LIP), cooling characteristics can be improved (increasing the actuation frequency) and large deformation can be obtained. The LIP design process is based on the two-state static model that describes the displacement-force relationship of the SMA coil spring in two states-a fully austenite phase and a fully martensite phase. The design process gives accurate design parameters of the SMA coil spring actuator that satisfy the required stroke and force. The model of the fully martensite phase of the SMA coil that includes the stress-induced detwinning enables the use of maximum shear strain of the SMA. The design method reduces the mass of an SMA without changing the stroke and increase the power density and efficiency. The cyclic actuation experiments demonstrate that the LIP design doubles the maximum frequency of SMA coil actuator with one-sixth the mass of the non-LIP design.
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