The submarine is a covert and powerful ** and reconnaissance tool, the success of which often depends on its silent performance when driving underwater. Reducing submarine noise not only helps to increase its concealment, but also increases its survivability in a hostile environment. In this article, we will ** how submarines reduce noise and introduce some of the development and application of silent technology.
1.** of submarine noise.
The main types of submarine noise include mechanical equipment, water flow sounds, hull resonances, and the activities of equipment and personnel inside the submarine. These noise sources are easily detected by enemy surface ships, aircraft, and sonar in the underwater environment, so reducing submarine noise is critical to its covert operations.
2.Optimization of design and materials.
In order to reduce the noise of the submarine, the design and material selection of the submarine play a key role. The use of advanced hydrodynamic design and vibration damping materials can effectively reduce the sound of water flow and hull resonance. Reducing the resistance of the hull in the water can reduce the noise level of the machinery when it is running.
3.Improvement of the propulsion system.
Improvements in submarine propulsion systems are also critical to noise reduction. By adopting more advanced propeller design, rudder and thruster technology, it is possible to reduce the underwater noise generated by submarines when driving underwater. In addition, some submarines also use nuclear reactors to provide power, which is quieter than traditional internal combustion engines and batteries, further reducing the noise level of submarines.
4.Noise isolation and absorption technology.
The submarine uses soundproof materials to isolate its interior to prevent the propagation of sound waves. In addition, the interior of the submarine is equipped with sound-absorbing materials to reduce the noise generated by the operation of mechanical equipment. These technologies help to reduce the impact of internal equipment operation, equipment resonance, and current sound on submarine performance and acoustic concealment.
5.Personnel training and activity control.
In addition to the design and technical improvements of the submarine itself, personnel training and movement control are also very important. Strict discipline and proper operation and maintenance of machinery and equipment can effectively reduce the noise generated during the operation of the submarine. In addition, during daily activities, submarine crews should be quiet and avoid unnecessary activities and sounds to ensure optimal concealment of the submarine in action.
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The development of submarine silent technology is a process of continuous exploration, with the continuous progress and innovation of science and technology, it is believed that the silent performance of submarines will continue to improve. Through the comprehensive use of design optimization, material technology, propulsion system improvement, sound isolation and other means, submarines will be able to better reduce noise and play a more important role in future naval warfare. It is hoped that there will be more technological breakthroughs in the future to make submarine operations more quiet, efficient and stealthy underwater.