Statistics show that about one-third of the failures in ground and flight tests of rockets are related to vibration, and the poor damping performance of structural materials is an important reason for such failures. In order to improve the damping performance of the structure, the structural materials and damping materials can be combined into composite materials, that is to say, the structural materials bear the stress and the damping materials produce the damping effect, so as to control the vibration and reduce the noise. It is one of the good shock absorption and noise reduction materials.
People pay more and more attention to the pollution and harm caused by noise. Therefore, higher requirements are put forward for the damping and noise reduction performance of damping materials.