Highly Accurate Rock Simulation System Based on Gas-Liquid Coupling Mechanism with Non- Harmonic Impact of Variable Stiffness and Damping Characteristics

Highly Accurate Rock Simulation System Based on Gas-Liquid Coupling Mechanism with Non- Harmonic Impact of Variable Stiffness and Damping Characteristics | 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 Highly Accurate Rock Simulation System Based on Gas-Liquid Coupling Mechanism with Non- Harmonic Impact of Variable Stiffness and Damping Characteristics Siyuan Chang, Yelin Li, Min Ye, Yuchuan Ma, Jiale Zhang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4778919/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 3 You are reading this latest preprint version Abstract The rock simulation system is of great significance for the development of high-frequency high-power hydraulic rock drills. It can simulate different rock drilling conditions in specific environments and observe the drilling effects under multi-scale conditions. This paper proposes a multi-stage adjustable rock simulation system with variable stiffness and damping. Firstly, based on the Kelvin rock theory, a rock vibration model under non-harmonic excitation is established. Combining the characteristics of adaptive oil-gas suspension rigidity locking, the rock simulation system and rock drilling impact system are designed. A nonlinear stiffness and damping model of the simulation system is established based on fluid mechanics theory. The drilling dynamic characteristics of the simulation system are studied using Amesim software, and nonlinear stiffness and damping curves of granite and the simulation system are drawn according to the dynamic parameters of rock drilling. Secondly, a drop hammer calibration experiment and an impact rock drilling experiment of the simulation system are designed. Finally, the nonlinear stiffness and damping characteristics of the simulation system in actual rock drilling are studied, and the validity of the simulation model is verified. The method proposed uses hydraulic oil as the supporting medium and nitrogen as the elastic medium, effectively addressing the challenge of detecting the impact characteristics of rock drills under specific operating conditions. Simulation results indicate that as the stiffness of granite and the simulation system decreases, the drilling displacement increases, while increasing damping coefficients lead to smaller drilling displacements. Experimental results demonstrate that the stiffness-damping error between the simulation system and granite does not exceed 10%. And the movement frequency of the simulation system's hydraulic cylinder is closely aligned with the impact frequency of the rock drill. fluid dynamics and control hydraulic rock drill rock simulation system stiffness-damping coupled model impacted drilling experiment Full Text Additional Declarations No competing interests reported. Table 4 is not available with this version Cite Share Download PDF Status: Under Review Version 1 posted Editor assigned by journal 22 Jul, 2024 Submission checks completed at journal 22 Jul, 2024 First submitted to journal 21 Jul, 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. 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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-4778919","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":330289841,"identity":"7b51da83-2b78-4480-b98d-abe05c2e39fc","order_by":0,"name":"Siyuan Chang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzElEQVRIiWNgGAWjYDACCQglB2QYMDCwkaDFmHQtiQ1Ea+Gf3fzs4Zc/h9P7ZzdvYPhQdhgo0kDAkjvHzI1l2w7nzrhzrIBxxrnDQJED+LUYSCSYSUs2HM7dIJFjwMzbdhgkQkhL+jdpCaDDDEBa/hKnJcdM8gPb4QSwFkZitEjcyCmTZmxLN5xxI63gYM+5dB6JGwS08M9I3yb544+1PP+M5I0PfpRZy/HPIKAFBJh5GJrBjANAzENYPRAw/mCoI0rhKBgFo2AUjFAAADjZQir/QoItAAAAAElFTkSuQmCC","orcid":"","institution":"Chang 'an University","correspondingAuthor":true,"prefix":"","firstName":"Siyuan","middleName":"","lastName":"Chang","suffix":""},{"id":330289843,"identity":"cf7dcc52-0de6-48f7-8607-0b1531164c36","order_by":1,"name":"Yelin Li","email":"","orcid":"","institution":"Hunan University of Arts and Science","correspondingAuthor":false,"prefix":"","firstName":"Yelin","middleName":"","lastName":"Li","suffix":""},{"id":330289845,"identity":"7251d4d7-852f-4271-8d85-4732daffc4ac","order_by":2,"name":"Min Ye","email":"","orcid":"","institution":"Chang 'an University","correspondingAuthor":false,"prefix":"","firstName":"Min","middleName":"","lastName":"Ye","suffix":""},{"id":330289846,"identity":"49b3e6ce-4338-49f4-b92d-aa5a5111c3bb","order_by":3,"name":"Yuchuan Ma","email":"","orcid":"","institution":"Chang 'an University","correspondingAuthor":false,"prefix":"","firstName":"Yuchuan","middleName":"","lastName":"Ma","suffix":""},{"id":330289850,"identity":"3384c8a1-f3e8-49ce-b4f8-9dde0b565f04","order_by":4,"name":"Jiale Zhang","email":"","orcid":"","institution":"Chang 'an University","correspondingAuthor":false,"prefix":"","firstName":"Jiale","middleName":"","lastName":"Zhang","suffix":""}],"badges":[],"createdAt":"2024-07-22 03:42:48","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4778919/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4778919/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":62644337,"identity":"c261dc2c-3da4-4a5e-8fdb-9bef33e89c8a","added_by":"auto","created_at":"2024-08-16 19:55:00","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1156595,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4778919/v1_covered_39826bad-f315-46ca-834a-e08d0068f5ef.pdf"}],"financialInterests":"\u003cp\u003eNo competing interests reported.\u003c/p\u003e\n\u003cp\u003eTable 4 is not available with this version\u003c/p\u003e","formattedTitle":"Highly Accurate Rock Simulation System Based on Gas-Liquid Coupling Mechanism with Non- Harmonic Impact of Variable Stiffness and Damping Characteristics","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"experiments-in-fluids","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"exif","sideBox":"Learn more about [Experiments in Fluids](http://link.springer.com/journal/348)","snPcode":"348","submissionUrl":"https://submission.nature.com/new-submission/348/3","title":"Experiments in Fluids","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"fluid dynamics and control, hydraulic rock drill, rock simulation system, stiffness-damping coupled model, impacted drilling experiment","lastPublishedDoi":"10.21203/rs.3.rs-4778919/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4778919/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The rock simulation system is of great significance for the development of high-frequency high-power hydraulic rock drills. It can simulate different rock drilling conditions in specific environments and observe the drilling effects under multi-scale conditions. This paper proposes a multi-stage adjustable rock simulation system with variable stiffness and damping. Firstly, based on the Kelvin rock theory, a rock vibration model under non-harmonic excitation is established. Combining the characteristics of adaptive oil-gas suspension rigidity locking, the rock simulation system and rock drilling impact system are designed. A nonlinear stiffness and damping model of the simulation system is established based on fluid mechanics theory. The drilling dynamic characteristics of the simulation system are studied using Amesim software, and nonlinear stiffness and damping curves of granite and the simulation system are drawn according to the dynamic parameters of rock drilling. Secondly, a drop hammer calibration experiment and an impact rock drilling experiment of the simulation system are designed. Finally, the nonlinear stiffness and damping characteristics of the simulation system in actual rock drilling are studied, and the validity of the simulation model is verified. The method proposed uses hydraulic oil as the supporting medium and nitrogen as the elastic medium, effectively addressing the challenge of detecting the impact characteristics of rock drills under specific operating conditions. Simulation results indicate that as the stiffness of granite and the simulation system decreases, the drilling displacement increases, while increasing damping coefficients lead to smaller drilling displacements. Experimental results demonstrate that the stiffness-damping error between the simulation system and granite does not exceed 10%. 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