In this paper, structural systems reliability analysis was used to estimate the system of a typical semi-submersible based on characteristic structure failure mechanisms under extreme wave loads. First, three-dimensional simulation model created for chosen platform using an elastic-perfectly plastic material model, neglecting effect strain hardening assumption. Then, design conditions, and were...

Abstract The vibration and noise performance of the offshore platforms are significant factors affecting comfort physical mental health staff, also important indicators for evaluating status platforms. Based on principle structural dynamics, taking semi-submersible platform as research object, this article systematically comprehensively studies characteristics transfer laws some partial-frame s...

Integrating point absorber wave energy converters (PAWECs) and an offshore floating wind platform provide a cost-effective way of joint exploitation. However, the coupled dynamics complicated hybrid system its influence on power performance are not well understood. Here, frequency-domain-coupled hydrodynamics, considering constraints output through relative motion between PAWECs semi-submersibl...

We propose a scalable state estimator with wave filter for surface vessels. The filter is shown to be either globally or locally exponentially stable depending on configuration. Performance is illustrated using actual data from a full scale semi-submersible drilling rig.