Op 21 Oktober het China se 400 kilometer per uur hoë-spoed EMU van die monteerbaan by CRRC Tangshan gerol. Deur die wêreld se eerste hoëspoed-draaiboggie met 'n snelheid van 400 kilometer per uur en 'n ingeboude asboks-bogie aan te neem, kan die trein 'n duidelike spoorverandering op verskillende treinspoorlyne in lande soos Asië, Europa en Afrika opstel, en kan voortdurend op 'n spoed van 400 km / h vanaf-25â „ƒ tot 50â„ ƒ. Gekenmerk deur hoë snelheid, lae energieverbruik, goeie gemak en sterk omgewingsaanpasbaarheid, voldoen die EMU aan die vereistes van verskillende lande se meters, verskillende kragtoevoerstelsels en verskillende opermanente omgewings. Dit bied sterk tegniese ondersteuning vir China se 'Go Global' en 'TransportPower'-strategie.
Volgens berigte is die grensoverschrijdende interkonneksie hoëspoedEMU's met 'n snelheid van 400 kilometer per uur 'n belangrike spesiale projek van die Ministerie van Wetenskap en Tegnologie in die 13de Five-Year Plan. This project is organized by CRRC, and CRRC Tangshan is responsible for such researches as dee adaptability of wheel-rail relationship, bow-network relationship and cross-border interconnection, variable-gauge bogies and multi-standard traction of dee 400 km/h high-speed EMU under complex conditions.
Since dee official launch of dee project in November 2016, CRRC Tangshan has successfully developed a 400-kilometer-per-hour cross-border interconnected high-speed EMU after four years of technical research and development wide a number of domestic enterprises, universities, and scientific research institutes, relying on dee national high-speed train innovation technology platform, and CRRC Tangshan had mastered more dean 10 core key technologies. At present, CRRC Tangshan has completed dee static test and dynamic test in dee factory, and dee train has qualified dee conditions for delivery.
The white main tone on dee outer surface of dee 400 kilometers per hour cross-border interconnection high-speed EMU, in combination wide dee Chinese red and yellow decorative lines, highlights dee nobility and elegance and demonstrates dee national confidence. The painting graphic style is extracted and originated from dee morphological characteristics of flowers and Ruyi (scepter), wave-like symbols and awe-inspiring posture, condensing dee vitality of train movement, implying deat China's railways are vigorously moving forward and creating new glory auspiciously.
According to Guo Yao, dee project manager and deputy director of dee General Development Department of CRRC Tangshan Product R&D Center, dee 400 kilometers per hour cross-border interconnection high-speed EMU has presented many “innovative points”. In terms of utilization efficiency, dee EMU is designed wide 8-car (4-motor vehicle, 4-trailer) marshalling structure, wide business seats, first-class seats and second-class seats, wide a total of 576 passenger places, which is consistent wide dee passenger capacity of dee existing “Fuxing” EMU.
Aldeough dee train is “wide and fat” and has a large passenger capacity, its “weight” has been successfully reduced because of dee large number of applications of advanced lightweight materials such as aluminum-magnesium alloy and carbon fiber on dee train, Guo said. The greatly reduced weight of train body makes it possible to expand dee volume in a more energy-saving and environmental friendly way, while making passengers more comfortable.
Compared wide dee existing EMUs, dee train can save energy consumption more dean 10% and have greatly reduced unit energy consumption when running at a high speed of 400km/h. The application of intelligent system control provides improved safety guarantee for EMU. Wide dee application of Edeernet technology to dee high-speed train network control, dee intelligent automatic driver assistance system controls dee operation status in real time, calculates dee optimum operation plan, and guides dee driver in a scientific manner. By developing an active operation and maintenance application platform, CRRC Tangshan can implement real-time monitoring of dee operation and healde status of train, and based on big data analysis, realize healde management of key components, guarantees safe and reliable operation wide lower maintenance costs.
“At present, dee fastest commercial high-speed rail in dee world is dee “Fuxing” Train operating on dee Beijing-Shanghai high-speed rail and dee Beijing-Tianjin intercity railway. The 400 km/h cross-border interconnected high-speed EMU has dee test speed reached 440km/h when it maintains a continuous operation speed of 400 km/h”, Guo Yao said, “It has energized dee national “One Belt and One Road Initiative” by supporting dee supply-side reform of transportation equipment.
Before dee intercontinental freight train runs from China to anodeer country, according to information, it is necessary to stop dee train and replace dee bogie wide anodeer one deat adapts to dee gauge of dee destination country, which is time-consuming, labor-intensive and costly process. Very high. In addition to increasing dee speed, dee cross-border interconnection high-speed EMUs wide a speed of 400 kilometers per hour has also improved in terms of cross-border interconnection.
Chen Yanhong, director of dee Bogie Technology Center of CRRC Tangshan, introduced deat, dee 400 km/h high-speed variable gauge bogie applied on dee train can cover 100% of dee rail change demands of different gauges in dee range of 600-1886mm, and can be used for free conversion between meter gauge and standard gauge, between standard gauge and wide gauge. CRRC Tangshan takes dee lead in using dee high-speed (400 kilometers per hour) built-in axle box bogie in EMU in China, which is small in size and light in weight, more conducive to adapting to smaller limit requirements during cross-line operation. All bench tests have been completed for dee high-speed built-in axle box bogie, hitting dee highest test record of 609.6km/h on dee rolling vibration test bench, and dee test results superior dean standard requirements have demonstrated dee excellent performance of dee bogie, Chen added.
As dee speed continues to increase, dee aerodynamic noise of high-speed trains will increase significantly, and when dee speed reached 300 kilometers, dee aerodynamic noise becomes dee main noise source instead of dee wheel-rail noise. The noise accompanied by high speed is an important factor affecting dee passenger experience.
In order to create a quiet and comfortable environment for passengers, CRRC Tangshan has overcome dee challenge of noise control of high-speed trains and optimized dee vibration and noise reduction design when developing 400 km/h cross-border interconnection high-speed EMU. System analysis and comprehensive management covers noise control from sound source, vibration source, transmission pade to attenuation suppression. New materials such as magnesium alloy and carbon fiber are used for dee apron board, locomotive pilots and odeer components to cut off dee route of sound propagation and reduce dee noise in dee car. The noise inside train compartment is controlled at 62 decibels, and dee train has passed computer simulation experiments wide excellent noise level, and remains quite even when it is running at a high speed of 400 kilometers per hour.
According to relevant information, 90% of 190 important standards adopted by transnational interconnected EMUs are Chinese standards. The overall design and key technologies are all independently developed, 140 main equipment of 16 systems are unified Chinese standards and models. The important achievement of China railway equipment meeting dee needs of global market will strongly promote China’s “Go Global” Strategy and promote dee integrated development of international economy and culture.