{"506671":{"#nid":"506671","#data":{"type":"news","title":"ASDL Grad Student Named Student of the Year","body":[{"value":"\u003Cp\u003EAerospace engineering grad student\u0026nbsp;\u003Cstrong\u003EEvan Harrison\u003C\/strong\u003E\u0026nbsp;has been selected as the 2016 Department of Transportation Student of the Year for the FAA Centers of Excellence.The 25-year-old Washington, GA native traveled to Washington, DC in January to formally receive the honor from the Department of Transportation.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EHarrison, a doctoral student, is one of several students working with ASDL director Dr.\u0026nbsp;\u003Cstrong\u003EDimitri Mavris\u003C\/strong\u003E\u0026nbsp;and research engineer Dr.\u003Cstrong\u003E\u0026nbsp;Hernando Jimenez\u003C\/strong\u003E\u0026nbsp;on the Partnership to Enhance General Aviation Safety Accessibility and Sustainability (PEGASAS), FAA\u003C\/p\u003E\u003Cp\u003ECenter of Excellence for General Aviation. Harrison\u2019s project,\u0026nbsp;\u003Cem\u003E\u003Cstrong\u003ESafety Analysis for General Aviation\u003C\/strong\u003E\u003C\/em\u003E, aims at enhancing the safety of general aviation operations through the improved use of flight data.\u003C\/p\u003E\u003Cp\u003E\u201cUltimately, we want to identify unsafe states, so we can better predict problems and trends in general aviation, and formulate effective safety enhancements\u201d said Harrison.\u003C\/p\u003E\u003Cp\u003EHarrison and his fellow researchers are comparing data collected with on-board recorders with aircraft performance models developed by the team that seek to predict aircraft behavior and response under different conditions. While commercial airplanes already record many flight parameters, and some carriers share anonymized data for safety analysis, this practice is voluntary and not widely adopted in general aviation.\u003C\/p\u003E\u003Cp\u003EModels describing the aircraft\u2019s behavior must capture extreme conditions, common in safety-critical events, with great accuracy. These models are helping Harrison\u2019s team to understand the energy state of aircraft at any given time, and to use energy-based metrics as a method for identifying unsafe states.\u003C\/p\u003E\u003Cp\u003E\u201cIf you look at time-stamped recordings of the aircraft\u2019s flight \u2013 and use our models to estimate key parameters that are not recorded, like lift, drag, weight, and thrust \u2013 you can describe its performance more completely. Retrospectively, then, we can analyze when an aircraft has flown too close to the boundary of its performance envelope.\u201d\u003C\/p\u003E\u003Cp\u003EHarrison has developed a detailed internal combustion cycle engine model that uses engine characteristics to predict the power output over a wide range of conditions. His efforts to develop, test, and validate the model against little published data available presented numerous difficulties.\u003C\/p\u003E\u003Cp\u003E\u201cHe tackled them with creativity and a sound technical foundation,\u201d said Jimenez.\u003C\/p\u003E\u003Cp\u003E\u201cEvan also collaborated with other graduate students working in this project to integrate, test, and validate aerodynamic and propulsion models against aircraft performance data. He even made some important refinements to his\u0026nbsp;model to better use the data to infer the propulsive characteristics.\u201d\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Aerospace engineering grad student Evan Harrison has been selected as the 2016 Department of Transportation Student of the Year for the FAA Centers of Excellence."}],"uid":"30502","created_gmt":"2016-02-26 12:30:58","changed_gmt":"2016-10-08 03:20:53","author":"Sapna Mistry","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2016-02-23T00:00:00-05:00","iso_date":"2016-02-23T00:00:00-05:00","tz":"America\/New_York"},"extras":[],"hg_media":{"506661":{"id":"506661","type":"image","title":"Evan Harrison","body":null,"created":"1456765200","gmt_created":"2016-02-29 17:00:00","changed":"1475895268","gmt_changed":"2016-10-08 02:54:28","alt":"Evan Harrison","file":{"fid":"204860","name":"-1-28peagasas_-evanharrison_git_coe_ga_w_nmineta.jpg","image_path":"\/sites\/default\/files\/images\/-1-28peagasas_-evanharrison_git_coe_ga_w_nmineta_0.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/-1-28peagasas_-evanharrison_git_coe_ga_w_nmineta_0.jpg","mime":"image\/jpeg","size":1028904,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/-1-28peagasas_-evanharrison_git_coe_ga_w_nmineta_0.jpg?itok=HSalnEhz"}}},"media_ids":["506661"],"groups":[{"id":"1239","name":"School of Aerospace Engineering"}],"categories":[{"id":"136","name":"Aerospace"},{"id":"134","name":"Student and Faculty"}],"keywords":[{"id":"169973","name":"Evan Harrison"},{"id":"171770","name":"FAA Centers of Excellence"},{"id":"126111","name":"GT-AE"},{"id":"130281","name":"Hernando Jimenez"},{"id":"171771","name":"Student of the Year"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":["kathleen.moore@ae.gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}