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Data for "Folding and Deploying Identical Thick Panels with Spring-loaded Hinges".

Jingyi Yang1, Yunlan Zhang1, Manolis N Chatzis1

  • 1Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom.

Data in Brief
|July 5, 2022
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Summary
This summary is machine-generated.

This study quantifies spring stiffness and damping coefficients for elastic hinges used in multi-degree-of-freedom systems. These parameters enable collision-free deployment of thick panels, enhancing robotic and structural applications.

Keywords:
Collision-free deploymentFree-vibration testQuasi-static measurementState-space estimationSystem identification

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Area of Science:

  • Mechanical Engineering
  • Robotics
  • Materials Science

Background:

  • Elastic hinges are crucial for multi-degree-of-freedom (DoF) systems, enabling controlled motion.
  • Previous work demonstrated collision-free panel deployment using elastic hinges.
  • Accurate characterization of hinge properties is essential for reliable system performance.

Purpose of the Study:

  • To experimentally determine the spring stiffness and damping coefficients of elastic hinges.
  • To provide supplementary data for validating simulations of panel deployment systems.
  • To detail system properties for replication and further research.

Main Methods:

  • Spring stiffness was measured using quasi-static torque tests with a custom rig including rotary tables and strain gauges.
  • Damping coefficients were determined from free-vibration tests on a rotational mass-spring system.
  • System identification techniques, specifically state-space estimation, were applied to analyze vibration response data.

Main Results:

  • Experimental data for spring stiffness and damping coefficients of the elastic hinges were acquired.
  • Detailed system properties, including hinge characteristics and other relevant parameters, were documented.
  • Demonstration videos confirmed the impact of these parameters on deployment outcomes, showing both collision-free and collisional scenarios.

Conclusions:

  • Accurate characterization of elastic hinge parameters (spring stiffness and damping) is vital for achieving predictable and collision-free deployments.
  • The supplementary data provided enables more accurate simulations and physical prototypes for multi-DoF systems.
  • This work facilitates the design and implementation of advanced deployment mechanisms in various engineering fields.