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China's rail transit has broken through the foreign monopoly in the field of vibration and noise reduction. Therefore, Jinan new era Gold Testing Instrument Co., Ltd. needs to master the correct online method to prevent such a situation from occurring. Breaking through the foreign monopoly in the field of vibration and noise reduction. Introduction: a special high-end project for the research of key technologies of high-performance vibration damping track bed system of rail transit independently researched by China, On June 9, it passed the technical appraisal in Luoyang. Experts believe that the project has broken the monopoly of foreign technology, and the vibration and noise reduction is at the international leading level. It is the first in the world. It is used in precision instrument laboratories, medical

a high-end project of research on Key Technologies of rail transit high-performance vibration damping track bed system independently researched by China, (3) there are problems in control accuracy, which passed the technical appraisal in Luoyang on June 9. Experts believe that the project has broken the monopoly of foreign technology, and the vibration and noise reduction is at the international leading level. It is the first in the world, providing technical support for the vibration and noise reduction of rail transit in special areas such as precision instrument laboratories, hospitals, schools and cultural relics protection

is a typical energy-saving material. It is reported that the prominent bottleneck problem encountered in the construction of urban rail transit is rail vibration and noise pollution. Once the rail is put into use, the later transformation cost is high and difficult to eradicate. In 2007, the material cost alone for the vibration reduction reconstruction of some sections of Beijing Metro Line 5 cost more than 50 million yuan. This Yulian group aluminum deep-processing product has obtained most of the market access certification. Before that, China's rail transit high-grade and special section vibration reduction measures mainly rely on imports. The vibration isolation effect is good, but the noise inside and outside the train increases, and the investment is huge, and the technology is controlled by others. At the same time, there is also a lack of industry standards and specifications in the field of vibration and noise reduction of urban rail in China

for this reason, Dr. Wang Anbin, a world-renowned track vibration and noise reduction expert, an expert of the national thousand person plan, and an expert of the Seventh Five Year Plan Institute of China shipbuilding industry, led the team to officially establish the project for research, and successively broke through the key technologies such as nonlinear stiffness, dynamic shock absorber, vibration isolation of ballast bed vibration isolation pad and system parameter matching design, forming the combined structure design of nonlinear replaceable ballast bed vibration isolation pad and fastener Innovation points such as removable structural design and safety matching design technology, establishment of system performance evaluation method to fill the gap in the track industry, application of 9 patents with 3 invention patents, and finally built a high-performance vibration damping track bed system with China's independent intellectual property rights, whose performance is better than that of imported products, but the price is only half of it

experts believe that the high-performance vibration damping track bed system not only has good vibration damping effect, but also has significantly better noise reduction indicators than imported products. It has high accuracy, high safety, low cost, convenient installation, fast laying speed and replaceability in special sections such as tunnels and viaducts, which meets the urgent needs of China in the development of urban rail transit, high-speed railway and other rail transit fields