Please use this identifier to cite or link to this item:
http://hdl.handle.net/10603/4890
Title: | Finite element analysis of warship structures |
Researcher: | Sunil Kumar P G |
Guide(s): | Nandakumar C G |
Keywords: | Ship Technology Warship Structure Finite Element Analysis Reliability Analysis Ultimate Strength Analysis Linear Static Analysis Nonlinear Static Analysis Geometric Nonlinearity Material Nonlinearity |
Upload Date: | 27-Sep-2012 |
University: | Cochin University of Science and Technology |
Completed Date: | 16/06/2008 |
Abstract: | Warships are generally sleek, slender with V shaped sections and block coefficient below 0.5, compared to fuller forms and higher values for commercial ships. They normally operate in the higher Froude number regime, and the hydrodynamic design is primarily aimed at achieving higher speeds with the minimum power. Therefore the structural design and analysis methods are different from those for commercial ships. Certain design guidelines have been given in documents like Naval Engineering Standards and one of the new developments in this regard is the introduction of classification society rules for the design of warships. The marine environment imposes subjective and objective uncertainties on ship structure. The uncertainties in loads, material properties etc.,. make reliable predictions of ship structural response a difficult task. Strength, stiffness and durability criteria for warship structures can be established by investigations on elastic analysis, ultimate strength analysis and reliability analysis. For analysis newlineof complicated warship structures, special means and valid approximations are required. Preliminary structural design of a frigate size ship has been carried out . A finite element model of the hold model, representative of the complexities in the geometric configuration has been created using the finite element software NISA. Two other models representing the geometry to a limited extent also have been created ?- one with two transverse frames and the attached plating alongwith the longitudinal members and the other representing the plating and longitudinal stiffeners between two transverse frames. newline |
Pagination: | 106p. |
URI: | http://hdl.handle.net/10603/4890 |
Appears in Departments: | Department of Ship Technology |
Files in This Item:
File | Description | Size | Format | |
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01_title.pdf | Attached File | 173.26 kB | Adobe PDF | View/Open |
02_declaration & certificate.pdf | 73.02 kB | Adobe PDF | View/Open | |
03_contents.pdf | 96.79 kB | Adobe PDF | View/Open | |
04_acknowledgements.pdf | 96.24 kB | Adobe PDF | View/Open | |
05_abstract.pdf | 91.93 kB | Adobe PDF | View/Open | |
06_list of figure & table.pdf | 193.8 kB | Adobe PDF | View/Open | |
07_nomenclature.pdf | 87.71 kB | Adobe PDF | View/Open | |
08_chapter 1.pdf | 201.51 kB | Adobe PDF | View/Open | |
09_chapter 2.pdf | 1.4 MB | Adobe PDF | View/Open | |
10_chapter 3.pdf | 493.59 kB | Adobe PDF | View/Open | |
11_chapter 4.pdf | 9.6 MB | Adobe PDF | View/Open | |
12_chapter 5.pdf | 92.9 kB | Adobe PDF | View/Open | |
13_references.pdf | 11.92 MB | Adobe PDF | View/Open |
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