State and Disturbance Observer based Robust Disturbance Rejection Control for Friction Electro-Hydraulic Load Simulator

State and Disturbance Observer based Robust Disturbance Rejection Control for Friction Electro-Hydraulic Load Simulator | 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 State and Disturbance Observer based Robust Disturbance Rejection Control for Friction Electro-Hydraulic Load Simulator Chenghu Jing, Hui Zhang, Bingsheng Yan, Yanbo Hui, Hongguang Xu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4123596/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 13 Jul, 2024 Read the published version in Nonlinear Dynamics → Version 1 posted 8 You are reading this latest preprint version Abstract Friction electro-hydraulic load simulator (FEHLS) classified as an electro-hydraulic torque servo mechanism, encounters significant challenges in the form of parameter uncertainties, external disturbances, and unmodeled dynamics, all of which notably degrade the system's capacity for accurate tracking. This study introduces the design of a state-and-disturbance estimation observer (SDEO) aimed at approximating unobservable states and nonconforming perturbations. A specifically tailored nonlinear disturbance observer (NDO) is constructed for the purpose of estimating such mismatched disturbances. Using backstepping designed method with prescribed performance, robust disturbance rejection control (RDRC) is proposed, ingeniously integrating SDEO, NDO, and a continuous sliding mode control. The stability of the proposed RDRC is systematically scrutinized utilizing the principles of Lyapunov stability method. The practical efficacy and robustness of the devised control scheme have been convincingly validated through meticulous experimental execution and analysis. Backstepping method sliding mode control nonlinear disturbance observer electro-hydraulic load simulator Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 13 Jul, 2024 Read the published version in Nonlinear Dynamics → Version 1 posted Editorial decision: Revision requested 08 Jun, 2024 Reviews received at journal 31 Mar, 2024 Reviewers agreed at journal 27 Mar, 2024 Reviewers agreed at journal 25 Mar, 2024 Reviewers invited by journal 25 Mar, 2024 Editor assigned by journal 24 Mar, 2024 Submission checks completed at journal 21 Mar, 2024 First submitted to journal 18 Mar, 2024 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-4123596","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":283197830,"identity":"3b394b11-6e96-451b-a157-78390f96567f","order_by":0,"name":"Chenghu 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