BULBOUS BOW EXCELLENT IN COLLISION ENERGY ABSORPTION CAPACITY

PROBLEM TO BE SOLVED: To provide a bulbous bow effectively reducing damage to a shipping space of a collided ship during collision without changing a layout of a hull structure. SOLUTION: This bulbous bow 2 is formed by welding an inner shell steel plate to an outer shell steel plate. The yield stre...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAJIMA KIYOTAKA, FUNATSU YUJI, ISHIKAWA TADASHI
Format:	Patent
Sprache:	eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION EQUIPMENT FOR SHIPPING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a bulbous bow effectively reducing damage to a shipping space of a collided ship during collision without changing a layout of a hull structure. SOLUTION: This bulbous bow 2 is formed by welding an inner shell steel plate to an outer shell steel plate. The yield strength U (MPa) of the outer shell steel plate, the yield strength I (MPa) of the inner shell steel plate, and the yield strength W (MPa) of weld metal in the welded portions of the outer shell steel plate and inner shell steel plate, satisfy formula (1);¾I-U¾≤70 MPa, formula (2); 0≤W-I≤100 MPa, and formula (3); 0≤W-U≤100 MPa. On collision, the bulbous bow is uniformly damaged to absorb collision energy. COPYRIGHT: (C)2010,JPO&INPIT