A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles

Different from the McKibben pneumatic muscle actuator, the straight fibers one is made of an elastomeric tube closed at the two ends by two heads that ensure a mechanical and pneumatic seal. High stiffness threads are placed longitudinally into the wall of the tube while external rings are placed at...

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Autores principales:	Francesco Durante, Michele Gabrio Antonelli, Pierluigi Beomonte Zobel, Terenziano Raparelli
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	straight-fibers pneumatic muscle pneumatic muscle fatigue life duration pneumatic muscle fatigue life prediction modelling procedure definition experimental validation Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/9655381872c54245ba0a1b4e30e542dc
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spelling	oai:doaj.org-article:9655381872c54245ba0a1b4e30e542dc2021-11-25T15:56:57ZA Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles10.3390/act101103002076-0825https://doaj.org/article/9655381872c54245ba0a1b4e30e542dc2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-0825/10/11/300https://doaj.org/toc/2076-0825Different from the McKibben pneumatic muscle actuator, the straight fibers one is made of an elastomeric tube closed at the two ends by two heads that ensure a mechanical and pneumatic seal. High stiffness threads are placed longitudinally into the wall of the tube while external rings are placed at some sections of it to limit the radial expansion of the tube. The inner pressure in the tube causes shortening of the actuator. The working mode of the muscle actuator requires a series of critical repeated contractions and extensions that cause it to rupture. The fatigue life duration of a pneumatic muscle is often lower than traditional pneumatic actuators. The paper presents a procedure for the fatigue life prediction of a straight-fibers muscle based on experimental tests directly carried out with the muscles instead of with specimens of the silicone rubber material which the muscle is made of. The proposed procedure was experimentally validated. Although the procedure is based on fatigue life duration data for silicone rubber, it can be extended to all straight-fibers muscles once the fatigue life duration data of any material considered for the muscles is known.Francesco DuranteMichele Gabrio AntonelliPierluigi Beomonte ZobelTerenziano RaparelliMDPI AGarticlestraight-fibers pneumatic musclepneumatic muscle fatigue life durationpneumatic muscle fatigue life predictionmodellingprocedure definitionexperimental validationMaterials of engineering and construction. Mechanics of materialsTA401-492Production of electric energy or power. Powerplants. Central stationsTK1001-1841ENActuators, Vol 10, Iss 300, p 300 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	straight-fibers pneumatic muscle pneumatic muscle fatigue life duration pneumatic muscle fatigue life prediction modelling procedure definition experimental validation Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	straight-fibers pneumatic muscle pneumatic muscle fatigue life duration pneumatic muscle fatigue life prediction modelling procedure definition experimental validation Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Francesco Durante Michele Gabrio Antonelli Pierluigi Beomonte Zobel Terenziano Raparelli A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles
description	Different from the McKibben pneumatic muscle actuator, the straight fibers one is made of an elastomeric tube closed at the two ends by two heads that ensure a mechanical and pneumatic seal. High stiffness threads are placed longitudinally into the wall of the tube while external rings are placed at some sections of it to limit the radial expansion of the tube. The inner pressure in the tube causes shortening of the actuator. The working mode of the muscle actuator requires a series of critical repeated contractions and extensions that cause it to rupture. The fatigue life duration of a pneumatic muscle is often lower than traditional pneumatic actuators. The paper presents a procedure for the fatigue life prediction of a straight-fibers muscle based on experimental tests directly carried out with the muscles instead of with specimens of the silicone rubber material which the muscle is made of. The proposed procedure was experimentally validated. Although the procedure is based on fatigue life duration data for silicone rubber, it can be extended to all straight-fibers muscles once the fatigue life duration data of any material considered for the muscles is known.
format	article
author	Francesco Durante Michele Gabrio Antonelli Pierluigi Beomonte Zobel Terenziano Raparelli
author_facet	Francesco Durante Michele Gabrio Antonelli Pierluigi Beomonte Zobel Terenziano Raparelli
author_sort	Francesco Durante
title	A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles
title_short	A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles
title_full	A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles
title_fullStr	A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles
title_full_unstemmed	A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles
title_sort	procedure for the fatigue life prediction of straight fibers pneumatic muscles
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9655381872c54245ba0a1b4e30e542dc
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A Procedure for the Fatigue Life Prediction of Straight Fibers Pneumatic Muscles

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