Implementation and Testing of a Mechanical Counterpressure Bio-Suit System

Sim, Liang; Bethke, Kristen; Jordan, Nané; Dube, Cameron; Hoffman, Jeffrey A.; Brensinger, Cam; Trotti, Guillermo; Newman, Dava

doi:10.4271/2005-01-2968

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…Conversely, the interface material can be reinforced along the lines of non-extension or minimum strain to enable maximum motility of the skin while providing targeted support. As an example, following the work by Iberall et al [15], [28], researchers have proposed the use of the lines of non-extension in the design of space suits [29][30] [31] e.g. incorporating local directional adjustment of fabric reinforcement and contractile properties in parallel to natural skin deformation.…”

Section: Discussionmentioning

confidence: 99%

Low-Cost Methodology for Skin Strain Measurement of a Flexed Biological Limb

Lin

Moerman

McMahan

et al. 2017

IEEE Trans. Biomed. Eng.

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-Objective: The purpose of this manuscript is to compute skin strain data from a flexed biological limb, using portable, inexpensive, and easily-available resources. Methods: We apply and evaluate this approach on a person with bi-lateral transtibial amputations, imaging left and right residual limbs in extended and flexed knee postures. We map 3D deformations to a flexed biological limb using freeware and a simple point-and-shoot camera. Mean principal strain, maximum shear strain, as well as lines of maximum, minimum, and non-extension are computed from 3D digital models to inform directional mappings of the strain field for an unloaded residual limb. Index Terms-skin strain, lines of non-extension, wearable technology.

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Section: Discussionmentioning

confidence: 99%

Low-Cost Methodology for Skin Strain Measurement of a Flexed Biological Limb

Lin

Moerman

McMahan

et al. 2017

IEEE Trans. Biomed. Eng.

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“…In recent years, scholars have proposed many structural design schemes to improve the joint mobility, for example, using soft joints of spacesuits [4], such as flat pleated joints, corrugated joints, and orange petal joints. The mechanical counter pressure schemes [5,6] and some relevant joint structures have high requirements in terms of materials, and they can only achieve partial pressure protection. The pneumatic joint structures [7] have good joint mobility, but the structures are bloated, resulting in a large deviation from the theoretical isotensive solid surface.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Neural Network Control with Fuzzy Compensation for Upper Limb Exoskeleton in Active Spacesuit

Dai

Tang

2021

Electronics

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In order to meet the maneuverability requirements of spacesuits for future manned planetary exploration, the concept of an active spacesuit based on the joint-assisted exoskeleton technology is presented. First, by studying the kinematic characteristics of the operator wearing the simulated spacesuit in different gravity environments, we developed a prototype of the upper limb exoskeleton. Then, the resistance moment of the simulated spacesuit was roughly obtained to match the operator’s motion range, being utilized to design the resistance moment model. Considering the unknown resistance moment effects in the active spacesuit and the uncertainties of the exoskeleton’s dynamics model, an adaptive neural network control with fuzzy compensation was developed to drive the upper limb exoskeleton’s tracking desired trajectories. Experimental studies were carried out using an upper limb exoskeleton to illustrate that the proposed method has excellent trajectory tracking performance and good adaptive ability to the gravity environment changes.

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Augmenting Exploration: Aerospace, Earth and Self

Young

Newman²

2010

Wearable Monitoring Systems

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Implementation and Testing of a Mechanical Counterpressure Bio-Suit System

Cited by 6 publications

References 7 publications

Low-Cost Methodology for Skin Strain Measurement of a Flexed Biological Limb

Low-Cost Methodology for Skin Strain Measurement of a Flexed Biological Limb

Adaptive Neural Network Control with Fuzzy Compensation for Upper Limb Exoskeleton in Active Spacesuit

Augmenting Exploration: Aerospace, Earth and Self

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