Strengthening the ship's watertight doors with the weight reduction approach

Document Type : Promotion Article

Author

SMI Shipyard

Abstract

Ship's watertight doors are used in watertight places and compartments such as the engine room. In addition to being watertight, these doors should be strong enough to withstand explosive loads or high-speed impacts. The use of these doors in high-speed vessels, where the weight of the vessel is very important, should be based on weight reduction. This study presents a design of watertight doors in which the weight is relatively optimized. The working method is as follows: first, by using Navier's theory for sheets and according to the boundary conditions and loading on the door, the thickness of the sheet resistant to explosive load is obtained, and in the next step, by equating the moment of inertia and using from the sheet and beam section standard, the structure is strengthened in terms of resistance to impact and explosion, and also relatively light in terms of the weight. The obtained results are satisfactory compared to the numerical results of the finite element method.

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