A Magnetorheological Elastomer‐Based Proportional Valve for Soft Pneumatic Actuators

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The interest in soft pneumatic actuators has been growing rapidly in robotics, owing to the contact adaptability with the material softness. However, these actuators are mostly controlled by rigid electronic pneumatic valves, which can hardly be integrated into the robot itself, limiting its mobility and adaptability. Recent advances in soft or electronics‐free valve designs provide the potential to achieve an integrated soft robotic system with reduced weight and rigidity. Nevertheless, the challenge in valve response remains open. To enable dynamic control of a soft pneumatic actuator (SPA), a fast‐response proportional valve is needed. Herein, the potential of Ecoflex‐based magnetorheological elastomer (MRE) membrane to create a proportional valve that can be used in the control of a soft robot made from the same silicone material is explored. Experimental characterization shows that the proposed MRE valve (30 mm × 30 mm × 15 mm, 30 grams) can hold pressure up to 41.3 kPa and regulate the airflow in an analog manner. The valve is used to perform closed‐loop proportional–integral–differential (PID) control with 50 Hz on a SPA and is able to control the pressure within the actuator chamber with a root‐mean‐square error of 0.05 kPa.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
A Magnetorheological Elastomer‐Based Proportional Valve for Soft Pneumatic Actuators ; day:17 ; month:10 ; year:2022 ; extent:11
Advanced intelligent systems ; (17.10.2022) (gesamt 11)

Urheber
Wang, Sihan
He, Liang
Albini, Alessandro
Zhang, Peizhi
Maiolino, Perla

DOI
10.1002/aisy.202200238
URN
urn:nbn:de:101:1-2022101815331305630737
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:31 MESZ

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Beteiligte

  • Wang, Sihan
  • He, Liang
  • Albini, Alessandro
  • Zhang, Peizhi
  • Maiolino, Perla

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