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This reduces the resistance to the air.
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Why can't high-speed rail be developed? Just prove to be safe.
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The state will not use this train (Beijing Morning Post).
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That's right, the previous Beijing-Shanghai high-speed railway has slowed down, and it is impossible to be faster than the Beijing-Shanghai high-speed railway.
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In October 2010, He Huawu, an academician of the Chinese Academy of Engineering and chief engineer of the Ministry of Railways, said that China was studying the dynamics of high-speed train systems at 400 500 kilometers per hour. This information is widely believed that China has begun to develop higher-speed trains with speeds of more than 500 kilometers per hour.
Shen Zhiyun, an academician of the Chinese Academy of Sciences, an academician of the Chinese Academy of Engineering, and an expert in locomotive and vehicle dynamics, said: "In the laboratory environment, China's ultra-high-speed trains with a speed of more than 500 kilometers per hour have been running, and the maximum speed on the test bench can even reach 600 kilometers per hour. However, under current conditions, high-speed trains with speeds of more than 400 kilometers per hour are unlikely to be commercially operational.
Because after the speed exceeds 400 kilometers per hour, the energy consumption and environmental damage of the train will increase significantly. However, by testing high-speed trains with a speed of more than 500 kilometers per hour, it is possible to guide the operation of high-speed trains with a speed of less than 400 kilometers per hour. ”
Liang Jianying, deputy chief engineer of China CSR Sifang Co., Ltd., introduced that as China's high-speed train "engineering application test platform for new technologies, new materials and new products", under the scientific deployment of the Ministry of Science and Technology and the Ministry of Railways, relying on the "Eleventh Five-Year National Science and Technology Support Project - Common Foundation and System Integration" and "National 973 Program Project - Research on the Key Mechanical Behavior of High-speed Trains with a Speed of 500 Kilometers per Hour", China CSR Sifang Co., Ltd. is the main body. Based on the open research platform of the National High-speed EMU Assembly Engineering Technology Research Center, the innovative model of combining production, education, research and application has been successfully completed after more than two years of scientific research.
Ma Yunshuang, chief technical expert of China South Locomotive, said that the test train is a cutting-edge product of China and Qi CSR comprehensive independent innovation and the adoption of international technical standard system. Its completion not only establishes a new technology platform for China's higher-speed high-speed EMUs, but also lays a solid foundation for the implementation of the "going out" strategy of high-speed EMUs.
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It is only R&D, and it has not been promoted. When you go to sit, you go to do experiments.
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Like a computer ** TV.
In the past, it was all developed for war, and in modern times it has become a civilian industry.
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The higher speed test train (CIT500, now renamed CRH380AM-0204) is the latest high-speed comprehensive testing test train of China Railway, which is deployed by the Ministry of Science and Technology of the People's Republic of China and the Ministry of Railways, relying on the "Eleventh Five-Year National Science and Technology Support Project - Common Foundation and System Integration" and "National 973 Program Project - Research on Key Mechanical Behavior of High-speed Trains with a Speed of 500 km/h", as a "new technology, new material, new product engineering application test platform" key scientific research projects. The higher speed test train was developed by CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., and was a 6-car full EMU train (6m). Based on the CRH380A electric locomotive group, the head car and tail car respectively adopt two different new head types, with a total traction power of 22,800 kilowatts, wind resistance brakes, and new materials such as carbon fiber, magnesium alloy, and new nano sound insulation are tested.
The train rolled off the line on December 23, 2011.
On December 7, 2010, the representative of China South Locomotive and Locomotive Group said at the 7th World High-Speed Railway Conference that the higher speed test train will be tested at speed, and strive to break the previous record of speed kilometers per hour set by the French test train V150 and hit 600 kilometers per hour.
In March 2013, the higher speed test train was tested on a rolling test bench at a speed of 605 km h.
On January 16, 2014, the train reached a test speed of 795 km/h.
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Believe in yourself and be number one.
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Running speed of 500 kilometers per hour high-speed train in recent years is unlikely, the island country's 500 high-speed car will also be put into use in 2027, although it has been a trial run of 40 kilometers of the test line speed of 550 per hour, this we are not unable to consider comprehensively For now, the higher speed is too early and not very economical, technically our country's high-speed rail is possible, CIT500 design speed on 500 test speed can reach 605 kilometers per hour, bogies can reach up to 650 kilometers. If the cost of running online is also huge, it should be necessary to build a higher-speed route and corresponding facilities for the train. Commercial operation 400 may be the limit, no matter how fast it is, it consumes a lot of energy and has a huge consumption on the life of the locomotive.
If you want to implement 500 and use it commercially, you may need new technology implementations. The maximum number of high-speed rail cooperation between China and Russia is also set at 400.
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It has been pitted by high obstacles, harmed by undesirable forces, and endangered the country and the development of socialism.
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The key is to run at this speed, and the plane will be much more embarrassing.
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