Numerical and Experimental Investigations of Whipping and Springing of Ship Structures

摘要

We present a computational method to assess whipping and springing effects on accelerations and sectional loads of ship structures, and to compare numerical results with model tests. The nonlinear rigid-body equations of motion and the linear equation of motion of the nodal degrees of freedom (vibratory modes) are implicitly coupled in the time domain with a Reynolds-averaged Navier-Stokes equations (RANSE) solver. Three finite element (FE) structure dynamics methods are described. Comparative measurements of motions, accelerations and sectional loads were obtained on the segmented model of a postpanamax containership.