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Polymer damping materials are widely usedDate:2020-01-07

With the development of modern industry, there are more and more vibration tools and high-power machines that produce strong vibration. The vibration hazards caused by various mechanical equipment in the operation and working process are also increasingly serious. In daily life, such vibration and noise will bring adverse effects on people's life, work and even physical health, such as hearing damage, sleep impact, induced diseases, etc In the engineering field, the wide-band random vibration caused by vibration and noise will cause the multi resonance peak response of the structure, directly affect the normal operation of electronic devices, instruments and meters, and even cause catastrophic consequences; in the military field, because the development of weapons and aircraft is increasingly high-speed and high-power, all kinds of aircraft are subject to engine and high-speed gas in the flight process The structure fatigue caused by the flow excitation, vibration and dynamic response is very serious. The submarine and hovercraft are excited by the engine, and the high decibel noise produced will seriously affect the combat effectiveness. Therefore, many effective methods and technical measures to reduce vibration and noise have been studied and developed. Among them, damping technology is the most effective method to control structural resonance and noise, and the most important means to solve the problem of vibration reduction and noise reduction. At present, functional damping materials have been widely used in cutting-edge weapons, aerospace vehicles, navigation, civil buildings, environmental protection and so on.