ksk5429 / numerical_model Star 0 Code Issues Pull requests Discussions Op^3 (OptumGX-OpenSeesPy-OpenFAST) integrated numerical modeling framework for offshore wind turbines. 11 examples (NREL 5MW + IEA 15MW + Gunsan + 4 isolation tests + 2 jackets), 33/33 analyses passing, fully open-source path with industry-standard 6x6 stiffness formulas (DNV, ISO, API, OWA). phd-dissertation nrel structural-dynamics openfast tripod jacket digital-twin openseespy iea-wind soil-structure-interaction plaxis offshore-wind scour suction-bucket optumgx scour-monitoring monopile Updated Apr 11, 2026 Python