Dynamics of Kresling origami deployment.

Area of Science:

• Mechanical Engineering
• Materials Science
• Robotics

Background:

• Origami-inspired structures offer novel deployable system designs with predictable shape transformations.
• Kresling origami patterns, known for multistability, show potential for uniaxial extension into tubes and booms.
• Limited research exists on the dynamic deployment behaviors of Kresling structures with large shape changes.

Purpose of the Study:

• To investigate the deployment dynamics of Kresling origami structures under various geometric parameters and operating strategies.
• To understand the complex, nonlinear, and potentially bistable dynamic behaviors during large shape changes.
• To provide insights for designing robust and tunable deployable systems.

Main Methods:

• Development and application of a full, six-degrees-of-freedom (6-DOF) dynamic model.
• Analysis of axial and off-axis dynamic responses during deployment.
• Investigation of the influence of geometric parameters and initial conditions on deployment behavior.

Main Results:

• Geometric parameter variations can lead to qualitatively distinct mechanical responses during deployment.
• Dynamic deployment is sensitive to initial conditions and minor geometric design changes.
• Specific geometries and configurations impact the stiffness of axial and off-axis deformation modes.

Conclusions:

• Kresling origami structures exhibit complex deployment dynamics influenced by geometry and initial conditions.
• Design strategies can be informed by understanding stiffness variations in deformation modes.
• Kresling-based designs hold significant potential for deployable systems requiring robust and tunable performance.