{"682255":{"#nid":"682255","#data":{"type":"event","title":"PhD Proposal by Haley Hilborn","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EDate\u003C\/strong\u003E: May 15, 2025\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime\u003C\/strong\u003E: 1:30pm EST\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation\u003C\/strong\u003E (Hybrid): MRDC 4211\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMeeting Link\u003C\/strong\u003E: \u003Ca href=\u0022https:\/\/gatech.zoom.us\/j\/96260223994?pwd=6LBigzMraBKoLn16Ss8Vy50FY2sCZ8.1\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/96260223994?pwd=6LBigzMraBKoLn16Ss8Vy50FY2sCZ8.1\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 962 6022 3994\u003C\/p\u003E\u003Cp\u003EPasscode: 165211\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E: Minimizing drillstring vibrations via high-fidelity modeling and control strategies\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EAccurate modeling and analysis of drillstring systems plays an important role in developing deep wells for geothermal resource extraction. Self-excited vibrations are inevitable in the drilling process.\u0026nbsp;A drillstring is a very flexible structure subjected to dynamic loading and boundary conditions such as nonlinear interactions between bit and rock or drillstring and wellbore wall. Torsional vibrations, specifically stick-slip, cause damage and failure of drilling equipment. Stick-slip also exacerbates axial and lateral vibrations. Thus, it remains a pertinent task to develop tools that can reduce and avoid damaging vibrations. This work aims to develop high fidelity models capable of producing undesired dynamic behavior and implementing robust control strategies to suppress unwanted behavior.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E:\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EAnirban Mazumdar (Advisor) - School of Mechanical Engineering\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EJiann-Cherng Su - Sandia National Laboratories\u003C\/p\u003E\u003Cp\u003EEllen Yi Chen Mazumdar - School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EHaiying Huang - School of Civil and Environmental Engineering\u003C\/p\u003E\u003Cp\u003EMichael Leamy - School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EMinimizing drillstring vibrations via high-fidelity modeling and control strategies\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Minimizing drillstring vibrations via high-fidelity modeling and control strategies"}],"uid":"27707","created_gmt":"2025-05-06 13:25:58","changed_gmt":"2025-05-06 13:26:41","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-05-15T13:30:00-04:00","event_time_end":"2025-05-15T15:00:00-04:00","event_time_end_last":"2025-05-15T15:00:00-04:00","gmt_time_start":"2025-05-15 17:30:00","gmt_time_end":"2025-05-15 19:00:00","gmt_time_end_last":"2025-05-15 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"MRDC 4211","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}