One of the main functions of police vehicles is to carry out tasks while ensuring their own safety. With the increasingly serious social problems such as anti-terrorism and conflict, the security problem of police car itself has become more and more prominent. Therefore, it is necessary to strengthen the research of police protection technology and improve the combat ability and protection performance of vehicles. The traditional vehicle protection mainly relies on steel plate armor and bullet proof glass to prevent bullet and explosion. Although it has good effect, it greatly weakens the vehicle's power, reduces the vehicle's carrying capacity and affects the vehicle's economy under the same conditions.

The vibration and noise of vehicles are increased. The research shows that the economy will be reduced by 7% for every 10% increase of vehicle weight. Engine noise, road noise, tire noise and so on are all generated by vibration or vibration transmission, which belong to vehicle structure noise, mostly belong to medium and low frequency noise. Low frequency noise is usually beyond the range of human hearing and is not easy to be detected, and its direct impact on physiology is not obvious. However, the low-frequency noise is close to the resonance frequency of human organs, which will damage the cardiovascular system, nervous system, digestive system and metabolic function.

The harm of vehicle interior noise must be paid great attention to, and the problem of reducing vehicle interior noise must be solved, which is of great significance to protect the warfighter, improve the combat effectiveness, and give full play to the combat effectiveness of weapons and equipment. Pcmape is a new type of protection technology for reducing structural noise, and adopts new materials and processes to improve the protection ability of vehicles, while ensuring the protection level In order to meet the lightweight requirements of the vehicle, improve the mobility and economy of the vehicle, the developed multi-functional damping and noise reduction damping can meet the lightweight requirements of the vehicle and effectively control the driving noise and vibration of the vehicle, at the same time, it is heat insulated, environmental friendly and odor free. The damping and sound absorption structure designed with pcmape damping reinforcement and relevant improvement measures can effectively reduce the armored vehicle Structural noise of vehicles.

With the increase of energy pressure and the rising voice of environmental protection and low carbon, new energy vehicles ushered in new development opportunities with its advantages of low fuel consumption and environmental protection. Pcmape noise reduction damping meets the requirements of the public security system for the power, safety and light weight of the special vehicle based on the principle of considering the specificity and economy, and it is popularized and applied. The green and environmental protection of puzmai damping product is stable, which will reflect the high practical value and bring good economic and social benefits.