Hydroelasticity codes based on the solution of the Navier-Stokes equations are beneficial for extreme value predictions of hull girder loads. Since direct long-term analyses using these numerical methods are prohibitive due to excessively large required computation times, strategies are sought to reduce the computational effort. An extrapolation approach allows reducing the required simulation duration significantly. Application to hogging bending moments of flexible containerships agrees with Monte-Carlo simulations in random sea state realisations.

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