In order to perform seismic surveys a Norwegian Company has come up with a triangular shaped hull form. Approximate the vessel's holl as a wall sided equilateral triangle & analyze its coupled & un coupled heave 3 pitch motions as below L=120m Bmax/T = 4. Note midships is @ 0 while cg is aft. Istern = Bmax L/12, Icg = Bmax L/36. Use parallel axis theorem to get midship Iwp value. Mass I = CT * Iwp 1 Determine the displacement mass, mass moment of Inertia (about midships) and mass coupling terms. EM = I 1/5 - m X cg 17 3 F0 = m 1/3 - m X cg n s