AIMC Topic: Elasticity
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Stiffness Customization and Patterning for Property Modulation of Silicone-Based Soft Pneumatic Actuators.
Soft robotics
Jun 19, 2017
Soft pneumatic actuators (SPAs), as novel types of motion drivers for robotic devices, excel in many applications, such as rehabilitation and biomimicry, which demand compliance and softness. To further expand their scope of utilization, the SPAs sho...
Optimizing Double-Network Hydrogel for Biomedical Soft Robots.
Soft robotics
Apr 12, 2017
Double-network hydrogel with standardized chemical parameters demonstrates a reasonable and viable alternative to silicone in soft robotic fabrication due to its biocompatibility, comparable mechanical properties, and customizability through the alte...
A benchtop biorobotic platform for in vitro observation of muscle-tendon dynamics with parallel mechanical assistance from an elastic exoskeleton.
Journal of biomechanics
Mar 21, 2017
We present a novel biorobotic framework comprised of a biological muscle-tendon unit (MTU) mechanically coupled to a feedback controlled robotic environment simulation that mimics in vivo inertial/gravitational loading and mechanical assistance from ...
An information-based machine learning approach to elasticity imaging.
Biomechanics and modeling in mechanobiology
Nov 18, 2016
An information-based technique is described for applications in mechanical property imaging of soft biological media under quasi-static loads. We adapted the Autoprogressive method that was originally developed for civil engineering applications for ...
Robotic vertical jumping agility via series-elastic power modulation.
Science robotics
Nov 16, 2016
Several arboreal mammals have the ability to rapidly and repeatedly jump vertical distances of 2 m, starting from rest. We characterize this performance by a metric we call vertical jumping agility. Through basic kinetic relations, we show that this ...
Optimal chordwise stiffness profiles of self-propelled flapping fins.
Bioinspiration & biomimetics
Sep 15, 2016
The versatility of fish to adapt to different swimming requirements is attributed to their complex muscular system. Fish modulate their fin stiffness and shape for maximized performance. In this paper, optimal chordwise stiffness profiles that maximi...
A design concept of parallel elasticity extracted from biological muscles for engineered actuators.
Bioinspiration & biomimetics
Aug 23, 2016
Series elastic actuation that takes inspiration from biological muscle-tendon units has been extensively studied and used to address the challenges (e.g. energy efficiency, robustness) existing in purely stiff robots. However, there also exists anoth...
A multiscale modelling of bone ultrastructure elastic proprieties using finite elements simulation and neural network method.
Computer methods and programs in biomedicine
Jul 5, 2016
Bone is a living material with a complex hierarchical structure which entails exceptional mechanical properties, including high fracture toughness, specific stiffness and strength. Bone tissue is essentially composed by two phases distributed in appr...
Determination of the mechanical and physical properties of cartilage by coupling poroelastic-based finite element models of indentation with artificial neural networks.
Journal of biomechanics
Feb 23, 2016
One of the most widely used techniques to determine the mechanical properties of cartilage is based on indentation tests and interpretation of the obtained force-time or displacement-time data. In the current computational approaches, one needs to si...
Running With an Elastic Lower Limb Exoskeleton.
Journal of applied biomechanics
Dec 22, 2015
Although there have been many lower limb robotic exoskeletons that have been tested for human walking, few devices have been tested for assisting running. It is possible that a pseudo-passive elastic exoskeleton could benefit human running without th...
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