Modelling and Structural Analysis of a Pressure Hull under Dynamic Load

Authors

  • P. Yamini Charishma  Department of Mechanical Engineering, JNTUA, Sreenivasa College of Engineering and Technology, Kurnool Andhra Pradesh, India
  • T. R. Sydanna  Department of Mechanical Engineering, JNTUA, Sreenivasa College of Engineering and Technology, Kurnool Andhra Pradesh, India
  • M. Naga Kiran  Department Mechanical Engineering, JNTUA, Dr. K.V.Subba Reddy Institute of Technology, Kurnool, Andhra Pradesh, India
  • A. Salmon  Department Mechanical Engineering, JNTUA, Dr. K.V.Subba Reddy Institute of Technology, Kurnool, Andhra Pradesh, India

Keywords:

Pressure Hulls, Steel, Static Analysis, Dynamic Analysis.

Abstract

Pressure hulls are the main load bearing structures of naval submarines, and autonomous underwater vehicles (AUVs). A pressure hull is a structure that is designed to withstand the compressive forces associated with hydrostatic pressure. In this thesis, the assembly of the pressure hull including Navigation compartment shell, Battery compartment shell which is connected with bolts is designed which is used at present. Around 16 M12 bolts are used to connect the Navigation compartment shell and Battery compartment shell. These shells are to be dissembled very frequently for battery charging and other maintenance purpose. It is observed that the dissembling and assembling process is a very time consuming because it requires unbolting and bolting of all the 16 bolts every time. A new design of pressure hull is proposed where the bolts are removed and the navigation compartment and battery compartment are welded. In the present paper, design calculations are done as per ASME codes to withstand the pressure of 65 Bar. The design constraints considered for the analysis were stresses and deflections. The pressure hulls have been modeled considering the elliptical cross section. The modeling of the pressure hull has been carried out by pro-5.0 and analysis software is ANSYS 14.0 software packages

References

  1. Tsybenko A.S., Kuranov B.A., Chepurnoi A.D., Krishchuk N.G. &Shtefan E.V., State of Stress and Strain of Pressure Vessel during Pressurization, Plenum Publishing Corporation(1989).
  2. Liang C.C., Optimum Design of Filament-wound Multilayer- sandwich Submersible Pressure Hulls, Pergamon Ocean Engineering,30 (2003) 1941-1967.
  3. Ross C.T.F., A Conceptual Design of an Underwater Vehicle, Elsevier Ocean Engineering, 33 (2006) 2087-2104.
  4. Ross, C.T.F., A Conceptual Design of an Underwater Missile Launcher, Elsevier Ocean Engineering, 32 (2005) 85-99.
  5. Ross C.T.F. & Etheridge J., The Buckling and Vibration of Tube-stiffened Axisymmetric Shells under External Hydrostatic Pressure, Pergamon Ocean Engineering, 27 (2000) 1373-1390.
  6. Ross C.T.F., Little A.P.F. &Adeniyi K.A., Plastic Buckling of Ring-stiffened Conical Shell under External Hydrostatic Pressure, Elsevier Ocean Engineering, 32 (2003) 21-36.
  7. Ross C.T.F., Little A.P.F. & Leonidas Chasapides, Jeff banks, and Daniele Attanasio, Buckling of Ring Stiffened Domes under External Hydrostatic Pressure: Science Direct Ocean Engineering, 31 (2002) 239-252.
  8. Ross C.T.F. & Little A.P.F., The Buckling of a corrugated Carbon Fiber Cylinder under External Hydrostatic Pressure, Elsevier Ocean Engineering, 28 (2001) 1247-1264.
  9. Blachut J. & Smith P., Buckling of multi-segment underwater pressure hull, Elsevier Ocean Engineering, 35 (2007) 247-260.
  10. Derek Graham, Predicting the collapse of externally pressurized ring-stiffened cylinders using finite element analysis, Elsevier Marine Structures, 20 (2007) 202-217.

International Journal of Scientific Research in Science and Technology

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Published

2016-08-30

Issue

Volume 2, Issue 4, July-August-2016

Section

Research Articles

License

Copyright (c) IJSRST

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
P. Yamini Charishma, T. R. Sydanna, M. Naga Kiran, A. Salmon "Modelling and Structural Analysis of a Pressure Hull under Dynamic Load" International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011,Volume 2, Issue 4, pp.167-172, July-August-2016.