Rony, J.S.Karmakar, D.2026-02-032025Ships and Offshore Structures, 2025, , , pp. -17445302https://doi.org/10.1080/17445302.2025.2463741https://idr.nitk.ac.in/handle/123456789/20481In the present study, time-domain response analysis of different configurations of a hybrid Submerged Tension Leg Platform (STLP) combined with a Point Absorber-type Wave Energy Converter (WEC) (STLPWEC) is performed using the aero-servo-hydro-elastic simulation. The study employs long-term analysis technique to predict the most probable values of motion amplitudes, and the forces and moments developed at the tower base for the hybrid STLP-WEC system under operational wind speed conditions of the 5 MW wind turbine. The long-term distribution is performed using short-term responses based on Rayleigh distribution and North Atlantic wave data. The performance of the offshore STLP-WEC system depends on both the transfer functions (translational and rotational motions) and the wave spectrum model. A comparative study of the long-term responses using JONSWAP spectrum model for different configurations of the hybrid STLP-WEC systems is performed, providing valuable insights for designing floating hybrid systems. © 2025 Informa UK Limited, trading as Taylor & Francis Group.Offshore oil well productionRayleigh numberStructural dynamicsTension-leg platformsWave energy conversionConverter systemJONSWAP wave spectrumLong-term responseOffshore floating wind turbinesRayleigh distributionsResponse analysisSpectra modelingSubmerged tension leg platform wind turbineWave energy converterWave energy convertersOffshore wind turbines