{"id":"W4409569600","doi":"10.1016/j.cma.2025.118020","title":"Floating projection topology optimization framework for efficient design of bi-connected 3D acoustic metamaterials","year":2025,"lang":"en","type":"article","venue":"Computer Methods in Applied Mechanics and Engineering","topic":"Acoustic Wave Phenomena Research","field":"Engineering","cited_by":5,"is_retracted":false,"has_abstract":false,"ca_institutions":"Ministry of Education and Child Care","funders":"Fundamental Research Funds for Central Universities of the Central South University; Science and Technology Program of Hunan Province; National Key Research and Development Program of China; National Natural Science Foundation of China; Key Technologies Research and Development Program; Hunan Provincial Science and Technology Department","keywords":"Topology optimization; Topology (electrical circuits); Metamaterial; Projection (relational algebra); Computer science; Acoustics; Mathematics; Physics; Engineering; Finite element method; Algorithm; Structural engineering; Combinatorics","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":[0.0002533544,0.0005921128,0.0005975612,0.0004805784,0.0002876513,0.0007103708,0.0008227547,0.000745171,0.003318181],"category_scores_gemma":[0.0004826583,0.0003634068,0.00050752,0.0003957493,0.0003841884,0.0006058236,0.001050754,0.0007149053,0.000615767],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002786184,"about_ca_system_score_gemma":0.0005120807,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0007002091,"about_ca_topic_score_gemma":0.001302176,"domain_scores_codex":[0.9998869,0.00003428703,0.000003859731,0.0000123424,0.0000510327,0.0000116406],"domain_scores_gemma":[0.9998927,0.00004707926,0.00001050804,0.00001422649,0.00002513805,0.00001027893],"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":[0.00005174003,0.00005086496,0.0001984698,0.0001106261,0.00003202743,0.00008454914,0.00005786297,0.8845251,0.01456012,0.05247928,0.001226896,0.04662247],"study_design_scores_gemma":[0.000004304849,0.00001580646,0.00002264507,0.000003440495,0.000002531062,0.0000143101,0.000006799796,0.9938278,0.0006573615,0.004798394,0.0006441511,0.000002524659],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.01757165,0.0001158268,0.975437,0.00008137622,0.00002371641,0.00002410565,0.00004262172,0.0001995585,0.006504134],"genre_scores_gemma":[0.4891072,0.0002278303,0.5055464,0.0001085524,0.00002382906,0.0002257731,0.0001830006,0.0001976255,0.004379693],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.003318181,"threshold_uncertainty_score":0.01110047,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02972884042415041,"score_gpt":0.3173799246708411,"score_spread":0.2876510842466907,"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."}}