{"response":{"docs":[{"system_create_dtsi":"2017-10-27T02:36:28Z","system_modified_dtsi":"2018-08-01T18:37:53Z","has_model_ssim":["Article"],"id":"bc386v41z","accessControl_ssim":["fda74efe-ace4-466e-8357-9bf4ddcfaca7"],"hasRelatedMediaFragment_ssim":["bc386v427"],"hasRelatedImage_ssim":["bc386v427"],"depositor_ssim":["cohenky@ucmail.uc.edu"],"depositor_tesim":["cohenky@ucmail.uc.edu"],"title_tesim":["Solely Magnetic Genetic/Fuzzy-Attitude-Control Algorithm for a CubeSat"],"date_uploaded_dtsi":"2017-02-13T00:00:00Z","date_modified_dtsi":"2017-04-05T00:00:00Z","isPartOf_ssim":["admin_set/default"],"proxy_depositor_ssim":["dungavjk@mail.uc.edu"],"doi_tesim":["10.2514/1.A33294"],"journal_title_tesim":["Journal Of Spacecraft And Rockets"],"college_tesim":["Engineering and Applied Science"],"department_tesim":["Aerospace Engineering and Engineering Mechanics"],"note_tesim":["This work was part of a pilot \"mediated-deposit model\" where library staff found potential works, later submitted for faculty review"],"creator_tesim":["Cohen, Kelly","Putman, Philip T.","Walker, Alex R."],"language_tesim":["English"],"description_tesim":["A genetic algorithm was used to optimize performance of a fuzzy inference system acting as a controller for a magnetically actuated CubeSat. A solely magnetically controlled satellite is a nonlinear, underactuated system for which the uncontrollable axis varies as a function of orbit position and attitude; variation is approximately periodic with orbit position. Therefore, controllability is not guaranteed, making solely magnetic control a less than ideal option for spacecraft requiring a high degree of pointing accuracy or spacecraft subject to relatively large disturbances. However, for small spacecraft, such as CubeSats, with modest pointing and disturbance rejection requirements, solely magnetic actuation is a good option. The genetic-algorithm-tuned fuzzy controller solution was compared to a similar linear quadratic regulator solution that was tuned to minimize the cost function used by the genetic algorithm. Both were optimized with respect to a single set of initial conditions. The genetic-algorithm-tuned fuzzy controller was found to be a lower-cost solution than the linear quadratic regulator for the optimized set of initial conditions. Additionally, a Monte Carlo analysis showed the genetic-algorithm-tuned fuzzy controller tended to settle faster than the linear quadratic regulator over a variety of initial conditions."],"license_tesim":["http://rightsstatements.org/vocab/InC/1.0/"],"date_created_tesim":["2015-09"],"source_tesim":["Journal Of Spacecraft And Rockets"],"thumbnail_path_ss":"/downloads/bc386v427?file=thumbnail","suppressed_bsi":false,"actionable_workflow_roles_ssim":["admin_set/default-default-depositing"],"workflow_state_name_ssim":["deposited"],"member_ids_ssim":["bc386v427"],"file_set_ids_ssim":["bc386v427"],"visibility_ssi":"open","admin_set_tesim":["Default Admin Set"],"sort_title_ssi":"SOLELY MAGNETIC GENETICFUZZYATTITUDECONTROL ALGORITHM FOR A CUBESAT","human_readable_type_tesim":["Article"],"read_access_group_ssim":["public"],"read_access_person_ssim":["konecnmc@ucmail.uc.edu"],"edit_access_person_ssim":["cohenky@ucmail.uc.edu"],"nesting_collection__pathnames_ssim":["bc386v41z"],"nesting_collection__deepest_nested_depth_isi":1,"_version_":1697076080815374336,"timestamp":"2021-04-15T03:37:51.261Z","score":0.00049999997}],"facets":[{"name":"human_readable_type_sim","items":[{"value":"Article","hits":1,"label":"Article"}],"label":"Human Readable Type Sim"},{"name":"creator_sim","items":[{"value":"Cohen, Kelly","hits":1,"label":"Cohen, Kelly"},{"value":"Putman, Philip T.","hits":1,"label":"Putman, Philip T."},{"value":"Walker, Alex R.","hits":1,"label":"Walker, Alex R."}],"label":"Creator Sim"},{"name":"subject_sim","items":[],"label":"Subject Sim"},{"name":"college_sim","items":[{"value":"Engineering and Applied Science","hits":1,"label":"Engineering and Applied Science"}],"label":"College Sim"},{"name":"department_sim","items":[{"value":"Aerospace Engineering and Engineering Mechanics","hits":1,"label":"Aerospace Engineering and Engineering Mechanics"}],"label":"Department Sim"},{"name":"language_sim","items":[{"value":"English","hits":1,"label":"English"}],"label":"Language Sim"},{"name":"publisher_sim","items":[],"label":"Publisher Sim"},{"name":"date_created_sim","items":[{"value":"2015-09","hits":1,"label":"2015-09"}],"label":"Date Created Sim"},{"name":"member_of_collection_ids_ssim","items":[],"label":"Member Of Collection Ids Ssim"},{"name":"generic_type_sim","items":[{"value":"Work","hits":1,"label":"Work"}],"label":"Generic Type Sim"}],"pages":{"current_page":1,"next_page":null,"prev_page":null,"total_pages":1,"limit_value":10,"offset_value":0,"total_count":1,"first_page?":true,"last_page?":true}}}