The Dynamic Evaluation of Ship Rigging, Booms, Kingposts, and Adjacent Ship Structures

摘要

The object of this program was threefold: (1) Obtain the experimental measurements for loads and stresses in cargo gear and adjacent support structures during standard cargo burtoning and swinging; (2) Perform a detailed theoretical analysis and predict the expected loads and stresses; and (3) Compare theoretical predictions with the experimental data. Two conclusions were reached from this test program: (1) The stress levels obtained were generally low and mostly below the recording sensitivity of the recording system. (2) The measured stresses at the winch house deck and walls indicated that the winch house provides some support in taking up kingpost reactions. Conventional theory neglects the winch house effects.