HELICOPTER DECK ARRANGED WITH LNG CARRIER STERN APPLIED WITH VIBRATION-PROOF TECHNIC TO IMPROVE VIBRATION STRENGTH

摘要

PURPOSE: 3D FE vibration analysis is carried out to reduce vibration, and the vibration mode is controlled to have structure strength and vibration strength. CONSTITUTION: A first propeller vibration analysis of a helicopter deck is carried out to reinforce structure and to avoid resonance with a vibration generated while navigation of a ship. A sunken deck is connected with both wing portions of the helicopter deck. A size and number of an inner girder(11) of the helicopter deck and a trans-web are increased. A lower pillar(12) is further installed.