| 摘要 |
PURPOSE:To reduce the necessary cost and obtain a large pitching reducing effect by supporting only a bow-part structure having a large pitching among the upper structures installed onto an upper deck, through a buffer-type supporting mechanism. CONSTITUTION:Onto the upper deck of a main hull 1, only the upper structure 21 close to a bow part among the upper structures 2 is supported through a buffer-type supporting mechanism 4, and the upper structure part 22 ranging from the hull center part to the stern part is formed as fixed-type upper structure. Therefore, the necessary cost can be reduced, and a large pitching reducing effect can be obtained by supporting only the upper structure close to the bow part where the vertical acceleration in pitching is large, in comparison with the case where the whole upper structure is supported by the buffer type supporting mechanism.
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