{"id":"W2890604017","doi":"10.1155/2018/8191526","title":"Nonlinear Dynamic Characteristic Analysis of a Landing String in Deepwater Riserless Drilling","year":2018,"lang":"en","type":"article","venue":"Shock and Vibration","topic":"Fluid Dynamics and Vibration Analysis","field":"Engineering","cited_by":24,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Guelph","funders":"Southwest Petroleum University; National Natural Science Foundation of China","keywords":"String (physics); Discretization; Nonlinear system; Deepwater drilling; Displacement (psychology); Engineering; Drilling riser; Drilling; Structural engineering; Boundary value problem; Finite element method; Moment (physics); Mechanical engineering; Physics; Mathematics; Classical mechanics; Mathematical analysis","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001071178,0.0002075781,0.0002436237,0.0002420223,0.0001706445,0.0002926783,0.000230904,0.0004474261,0.0006990963],"category_scores_gemma":[0.0002915573,0.0001482466,0.0002625423,0.0001256155,0.0002975653,0.0002939827,0.0002687697,0.0002238981,0.0001136192],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001818535,"about_ca_system_score_gemma":0.0002014142,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002799681,"about_ca_topic_score_gemma":0.001295343,"domain_scores_codex":[0.9999486,0.00001093248,0.000002232948,0.0000100183,0.00001950479,0.000008587597],"domain_scores_gemma":[0.9999264,0.00003016745,0.00001532022,0.00000571144,0.00001595462,0.000006357758],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.00008251906,0.00004616886,0.004950037,0.0000817884,0.00002273212,0.0005800615,0.0002645053,0.8979694,0.07576022,0.004631941,0.0002160712,0.01539455],"study_design_scores_gemma":[0.000001635352,0.00002761023,0.0008590909,0.000002231859,0.000001955107,0.00002548413,0.00002408579,0.9978051,0.0009266593,0.0002059357,0.0001156907,0.000004585763],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7347191,0.0003017206,0.2594889,0.00009314239,0.00001927216,0.00003031037,0.00004118901,0.0001245602,0.00518177],"genre_scores_gemma":[0.9966973,0.00009234554,0.001785456,0.000007960709,0.000002482015,0.000009673526,0.0000163808,0.000005714635,0.001382666],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002799681,"threshold_uncertainty_score":0.005566776,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005587470205024259,"score_gpt":0.2262530066997512,"score_spread":0.2206655364947269,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}