RULES DET NORSKE VERITAS (DNV) = STRUCTURES = - Boat Design Net

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Amended July 2011, see page 3 Rules for High Speed, Light Craft and Naval Surface Craft, January 2011Pt.3 Ch.1 – Page 3GeneralAs of October 2010 all DNV service documents are primarily published electronically.In order to ensure a practical transition from the “print” scheme to the “electronic” scheme, all rule chapters havingincorporated amendments and corrections more recent than the date of the latest printed issue, have been given the dateJanuary 2011.An overview of DNV service documents, their update status and historical “amendments and corrections” may be foundthrough http://www.dnv.com/resources/rules_standards/.Amendments July 2011• General— The restricted use legal clause found in Pt.1 Ch.1 Sec.4 has been added also on the front page.Main changesSince the previous edition (January 2005), this chapter has been amended, most recently in July 2010. All changespreviously found in Pt.0 Ch.1 Sec.3 have been incorporated and a new date (January 2011) has been given as explainedunder “General”.In addition, the layout has been changed to one column in order to improve electronic readability.DET NORSKE VERITAS AS
Rules for High Speed, Light Craft and Naval Surface Craft, January 2011 Amended July 2011, see page 3Pt.3 Ch.1 Contents – Page 4CONTENTSSec. 1 Design Principles ................................................................................................................................ 5A. Documentation .............................................................................................................................................................. 5A 100 Plans and particulars ............................................................................................................................................. 5A 200 Information ........................................................................................................................................................... 5A 300 Strength calculations............................................................................................................................................. 5A 400 Certificates ............................................................................................................................................................ 5B. Subdivision and Arrangement ..................................................................................................................................... 6B 100 General.................................................................................................................................................................. 6B 200 Transverse watertight bulkheads........................................................................................................................... 6B 300 Position of collision bulkhead............................................................................................................................... 6B 400 Openings and closing appliances.......................................................................................................................... 6B 500 Cofferdams............................................................................................................................................................ 6B 600 Steering gear compartment ................................................................................................................................... 7C. Scantlings ....................................................................................................................................................................... 7C 100 General.................................................................................................................................................................. 7C 200 Loading conditions ............................................................................................................................................... 7C 300 Hull girder strength............................................................................................................................................... 7C 400 Resistance to slamming ........................................................................................................................................ 7C 500 Local vibrations .................................................................................................................................................... 7C 600 Miscellaneous strength requirements.................................................................................................................... 7D. Definitions ...................................................................................................................................................................... 7D 100 Symbols ................................................................................................................................................................ 7D 200 Structural terms..................................................................................................................................................... 8Sec. 2 Design Loads..................................................................................................................................... 10A. General......................................................................................................................................................................... 10A 100 Introduction......................................................................................................................................................... 10A 200 Definitions .......................................................................................................................................................... 10B. Accelerations................................................................................................................................................................ 11B 100 General................................................................................................................................................................ 11B 200 Design vertical acceleration................................................................................................................................ 12B 300 Horizontal accelerations...................................................................................................................................... 13C. Pressures and Forces .................................................................................................................................................. 14C 100 General................................................................................................................................................................ 14C 200 Slamming pressure on bottom ............................................................................................................................ 14C 300 Forebody side and bow impact pressure............................................................................................................. 16C 400 Slamming pressure on flat cross structures......................................................................................................... 17C 500 Sea pressure ........................................................................................................................................................ 18C 600 Liquids ................................................................................................................................................................ 19C 700 Dry cargo, stores and equipment ........................................................................................................................ 20C 800 Heavy units ......................................................................................................................................................... 20Sec. 3 Hull Girder Loads ............................................................................................................................ 21A. Longitudinal Bending, Shearing and Axial Loads................................................................................................... 21A 100 General................................................................................................................................................................ 21A 200 Crest landing ....................................................................................................................................................... 21A 300 Hollow landing ................................................................................................................................................... 22A 400 Hydrofoils ........................................................................................................................................................... 22A 500 Hogging and sagging bending moments............................................................................................................. 22A 600 Shear forces from longitudinal bending.............................................................................................................. 23A 700 Axial loads .......................................................................................................................................................... 23A 800 Combination of hull girder loads ........................................................................................................................ 23B. Twin Hull Loads.......................................................................................................................................................... 23B 100 General................................................................................................................................................................ 23B 200 Vertical bending moment and shear force .......................................................................................................... 24B 300 Pitch connecting moment.................................................................................................................................... 26B 400 Twin hull torsional moment................................................................................................................................ 26DET NORSKE VERITAS AS
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