Open-Loop Control for Displacement of Balloon-Type Dielectric Elastomer Actuator Pre-Stretched with Water Pressure

Open-Loop Control for Displacement of Balloon-Type Dielectric Elastomer Actuator Pre-Stretched with Water Pressure | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Open-Loop Control for Displacement of Balloon-Type Dielectric Elastomer Actuator Pre-Stretched with Water Pressure Asahi TSUJINO, Takeshi HAYAKAWA This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5822273/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 05 May, 2025 Read the published version in ROBOMECH Journal → Version 1 posted 6 You are reading this latest preprint version Abstract Soft actuators have attracted significant attention owing to their unique characteristics and potential for various applications. A dielectric elastomer actuator (DEA) is a type of soft actuator driven by electric voltage and has superior characteristics, such as a fast response, light weight, and simple structure. Several studies have been conducted to analyze the static and dynamic characteristics of a DEA to control its displacements. However, a theoretical analysis of dynamic characteristics of balloon-type DEA including their drive system has not yet been performed. In this study, we analyzed the dynamic characteristics of a balloon-type DEA pre-stretched with water pressure. To this end, we fabricated a DEA using poly (dimethylsiloxane) (PDMS) as an elastomer film and carbon grease as an electrode. We constructed a physical model of the balloon-type DEA pre-stretched with water pressure based on a water oscillation model in an experimental system. Further, we derived an analytical solution for the equation of motion of the system and evaluated the frequency and dynamic responses of the DEA. The theoretical values calculated by the model are in good agreement with the experimental values. Furthermore, we attempted an open-loop control for the displacements of the DEA using the constructed model and successfully achieved it for various input signals. Finally, we demonstrated an application of the balloon-type DEA pre-stretched with water pressure as a membrane pump, which can help generate various pressure waves that are important for artificial hearts or microfluidic cell culture systems. Soft actuator Dielectric elastomer actuator (DEA) Modeling Dynamic response Open-loop control Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementaryvideo.mp4 Cite Share Download PDF Status: Published Journal Publication published 05 May, 2025 Read the published version in ROBOMECH Journal → Version 1 posted Editorial decision: Accepted 08 Apr, 2025 Reviews received at journal 08 Apr, 2025 Reviewers agreed at journal 28 Mar, 2025 Reviewers invited by journal 28 Mar, 2025 Submission checks completed at journal 28 Mar, 2025 First submitted to journal 20 Mar, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5822273","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":435335518,"identity":"70011e5d-99d9-44a9-b2b1-29ef48183a5f","order_by":0,"name":"Asahi TSUJINO","email":"","orcid":"","institution":"Chuo University","correspondingAuthor":false,"prefix":"","firstName":"Asahi","middleName":"","lastName":"TSUJINO","suffix":""},{"id":435335519,"identity":"eb8e5302-e4f7-4075-9128-ab54043f93b7","order_by":1,"name":"Takeshi 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analyzed the dynamic characteristics of a balloon-type \nDEA pre-stretched with water pressure. \nTo this end, we fabricated a DEA using poly (dimethylsiloxane) (PDMS) as an elastomer film \nand carbon grease as an electrode. \nWe constructed a physical model of the balloon-type DEA pre-stretched with water pressure \nbased on a water oscillation model in an experimental system. \nFurther, we derived an analytical solution for the equation of motion of the system and \nevaluated the frequency and dynamic responses of the DEA.\nThe theoretical values calculated by the model are in good agreement with \nthe experimental values.\nFurthermore, we attempted an open-loop control for the displacements of the DEA \nusing the constructed model and successfully achieved it for various input signals.\nFinally, we demonstrated an application of the balloon-type DEA\npre-stretched with water pressure as a membrane pump, \nwhich can help generate various pressure waves that are important \nfor 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