A submarine is a self-propelling craft that is designed to work underwater and complete various operations. Submarine designs can have a single or double hull system that contains all the important systems and manpower to complete their missions. Unlike ships, submarines travel smoothly underwater and can be powered by nuclear reactor or fuel to propel it.
Working & Design Principles of submarines-
The submarine works very differently than other crafts. It operates using the principle of buoyancy by Archimedes which says that upward buoyant force acting on a body that is fully or partially immersed in the liquid is equal to the weight of the fluid displaced by the body. This buoyant force acts in the upward direction at the center of mass of the fluid displaced.
In a submarine, the equipment is not generally mounted on the pressure hull and elastic mounting system because it increases the vibration on the ship. To fit these requirements, suspended platforms and cradles are used. A submarine mainly consists of following components
- Pressure hull
- Ballast tanks
- Navigation systems
- Life-support systems
Apart from these components, Sonar is the system that plays the main role in navigating the submarine. It is an eye for submarine during underwater operations. The main rile of some subsystems is to detect any passive or active mode, localization, tracking and avoid any obstacle.