ANALYSIS OF THE RESPONSE OF MOORED SURFACE AND SUBSURFACE VESSELS TO OCEAN WAVES

Abstract : This study analyzes the response of a moored ship or submersible craft, in uniform or irregular waves, and also the forces in the mooring lines induced by ship responses. The response in heave, surge, and pitch of a moored ship or submersible craft with known hydrodynamic characteristics to waves approaching head-on can be calculated by use of the method outlined in this Memorandum. Computed values of the response of a moored 880-ton vessel (simulated by a rectangular block of equivalent displacement), moored in uniform waves, are found to compare favorably with results of model tests.