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Design Optimization of Pressure Vessel of Small Autonomous Underwater Vehicle  

CHUNG TAE-HWAN (Naval Architecture and Ocean engineering, Chungnam National University)
HO IN-SIKN (Naval Architecture and Ocean engineering, Chungnam National University)
LEE PAN-MOOK (Ocean Development System Laboratory, KORDI)
LEE CHONGMOO (Ocean Development System Laboratory, KORDI)
LIM YONGGON (Ocean Development System Laboratory, KORDI)
Publication Information
Journal of Ocean Engineering and Technology / v.19, no.1, 2005 , pp. 95-99 More about this Journal
Abstract
This paper presents the optimum design of cylindrical shell under external pressure loading. Two kinds of material, Al7075-T6, Ti-6Al-4V, are considered. For each material, the design variable is a thickness of the unstiffened parallel middle body shell, and the state variable, constraint, is hoop stress and the object .function is total weight of the cylindrical shell. Optimization is performed by conventional FE Program, ANSYS. In addition, buckling analysis is performed for the middle body of the cylindrical shell. Finally, we calculates the payload of the cylindrical shell to keep neutral buoyancy with optimized thickness in deep-sea applications.
Keywords
AUV(Autonomous Underwater Vehicle); Pressure Vessel; Optimization; PEA;
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