Methodical development of active compliant mechanisms driven by shape memory alloy wire

Beschreibung

1 Introduction 2 State of the art 2.1 Actuating materials 2.2 Compliant actuators driven by SMA wires 2.2.1 Fundamentals of shape memory alloys 2.2.2 Constitutive models of shape memory alloys 2.2.3 Concepts of active compliant components driven by SMA wires 2.3 Compliant mechanisms 2.3.1 Modeling methods for compliant beams with large deflection 2.3.2 Synthesis methods for compliant mechanisms 2.4 Research lacks and objectives 3 Active compliant components driven by SMA wires 3.1 Actuation mechanism and sample configurations 3.2 Material selection and characterization 3.3 Manufacturing processes 3.3.1 Vacuum assisted silicone infusion process 3.3.2 FDM 3D-printing using TPU filaments 3.4 Analytical modeling 3.4.1 Modeling of bending beams 3.4.2 Neutral plane shift in samples containing a single SMA wire 3.4.3 Equivalent second moment of area for samples with non-uniform cross-sections 3.4.4 Analytical model for samples deformed in 2D 3.4.5 Analytical model for samples deformed in 2.5D 3.5 Experimental investigation 3.5.1 Setup of the test bench 3.5.2 Experimental results 3.6 Comparison of analytical model predictions with experimental results 4 Effect of loads on the deformation of active compliant components 4.1 Analytical investigation 4.2 Experimental investigation 5 Synthesis of active compliant mechanisms 5.1 Geometric characterization of two-position motion 5.1.1 Description of planar rigid body position changes in terms of poles 5.1.2 Transformation of the spatial line guidance problem into a planar rigid body guidance problem 5.2 Deformation similarity of the compliant components 5.3 Synthesis of an active open-chain mechanism 5.4 Synthesis of an active closed-chain mechanism 6 Summary

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Zhenbi Wang

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): Active compliant component Compliant mechanism Shape memory alloy wire Smart material Soft actuator

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