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With the development of science and technology and the improvement of people's awareness of environmental protection, it is more and more urgent to reduce the vibration and noise of ships and other vehicles. How to control the vibration and noise of ships is a complex system engineering, and also an important symbol to measure the level of a country's shipbuilding.



There are many kinds of vibration sources on the ship, and the vibration and noise caused by them will cause serious harm, such as rivet loosening, structural damage, affecting the comfort of the crew, easy to cause fatigue of the crew, affecting the normal work of instruments and instruments, reducing the accuracy of use and so on.



For military ships, vibration and noise can also reduce the range of sonar and radar, greatly weaken their combat effectiveness, and even cause devastating attacks.



In the shipbuilding industry, the traditional method of reducing vibration and noise is to strengthen the structure. Its main disadvantage is that the vibration energy is not consumed, which results in noise spreading to other parts. At present, vibration and noise reduction technologies commonly used in ship industry include vibration isolation, damping, sound insulation, sound absorption, etc. Damping technology is to use the viscoelasticity of polymer materials to convert vibration energy into heat energy consumption and dissipate, thus effectively reducing structural vibration and noise. Damping technology has the characteristics of reducing vibration and noise without changing the original design and equipment of ships. It is especially effective for broadband random vibration and noise, especially suitable for shipbuilding industry with frame structure as its main component. Damping materials for warships not only need to exert excellent damping performance in a certain range of temperature and frequency, but also need to meet the harsh use environment of warships, such as flame retardant, non-toxic, seawater resistance, salt fog resistance, oil resistance and aging resistance. Therefore, the ship damper material is a high performance damper material.