کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7207144 1469065 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling a soft composite accumulator for human mobility assist devices
ترجمه فارسی عنوان
مدل سازی یک باتری کامپوزیت نرم برای وسایل نقلیه مواجهه انسان
کلمات کلیدی
کامپوزیت نرم، باتری، دستگاه های تحرک کمک، اسکلت خارجی، کشش محدود
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
چکیده انگلیسی
Research in the field of human mobility assist devices, aiming to reduce the metabolic cost of daily activities, is seeing the benefits of the exclusive use of accumulators to store and release energy during the gait cycle. The Pneumatic Artificial Muscle, used in a passive state, has proven to be a superior choice for these devices when compared to its alternatives, however, challenges regarding muscle pressure dissipation and a limited elongation potential have been identified. A recently developed, novel Soft Composite material has been shown to experimentally replicate the distinctive mechanical behaviour of the Pneumatic Artificial Muscle, without the need for internal pressurization. This paper presents two separate constitutive models to provide a closer insight into the behaviour of these Soft Composite accumulators. Both models were derived from methods involving finite elasticity theory and employed either a structural strain energy function of Holzapfel, Gasser, and Ogden's type or a phenomenological strain energy function of Fung's type. Both models were in good agreement with the experimental data that were collected through a modified extension-inflation test and, therefore, provide a basis for further examination as a Soft Composite design model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 80, April 2018, Pages 81-87
نویسندگان
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