Why can t Harmony reach 500 speed

When the train is moving at high speed, when the wind speed is very large, the performance of our whole car, including all bearings, gears, etc., their temperature is within a reasonable range. I'll just give you an example, there is a very important safety indicator for train safety, which is called the derailment coefficient in the world, that is, the train at different speeds, whether you are 120 kilometers, 300 kilometers, or 380 kilometers, until we say 480 kilometers today, the train will not be separated from the rails of the railway, which is called the detachment coefficient. Let's listen to the deputy chief engineer of the Ministry of Railways today give us three of our most important sets of data to prove that our trains are safe:

He has three important safety indicators: the first is called the derailment factor, and the stipulation is that we have only reached it now, and there is still a large margin. The second is the load reduction rate of the wheel weight, the wheel at a certain moment, a certain wheel must be suspended, it will produce a load reduction, float up, this load reduction rate assessment index is, today's maximum.

The third indicator is that when the wheel crosses the curve and crosses the turnout, it has a transverse effect with the rail, and the transverse action rate is large, it will cause the train to derail, the index is 48 kN, and today's maximum is 16 kN. To sum up in one sentence, our 380 car is not only very safe and stable at such a high speed today, but also performs excellently.

The various parts of the train can't withstand that speed, otherwise there will be problems, and the same is true of railway design.

The maximum speed of Harmony reached 605 kilometers per hour, on January 17, 2014, CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. **** factory area, a silver-gray overspeed test train parked on the track of the plant, the bench test speed of 605 kilometers per hour of the train, was named higher speed test train (CRH380AM).

The Harmony EMU marks that the technical level of China's railway passenger equipment has reached the world's advanced level, and China has become one of the few countries in the world that can independently develop EMUs with a speed of 380 kilometers per hour.

On the morning of June 24, the domestic "Harmony" CRH3 EMU set a speed of kilometers per hour in the Beijing-Tianjin intercity railway operation test. This is currently the highest speed of the world's operating railway. The Beijing-Tianjin intercity railway has been officially in operation since August 1.

At present, the maximum speed of the CRH380B EMU is: Of course, the speed of the Harmony EMU on the high-speed rail is up to 350 when operating to carry passengers

Recently, the Beijing-Shanghai high-speed railway has been commissioned to increase by 420 kilometers per hour, which is the fastest in the world.

Do you mean operating speed or maximum speed.

CCTV news channel said 416 kilometers per hour.

The maximum speed of the Harmony is 400 km/h and above.

The Harmony EMU series was originally introduced with foreign technology and the concept of "absorption, digestion and reproduction". Through foreign technical support, learning and re-creation. It is a series of high-speed EMUs produced on the basis of digestion, absorption and re-innovation, such as 17 types of EMUs represented by the CRH380 series EMUs independently developed by CRRC in Luzhou Qizha, involving 4 technical platforms.

Harmony was the world's fastest, highest-tech and best-matched EMU before the advent of China's standard EMUs, with a continuous speed of 380 km/h. It is the basis for the development of China's standard EMU (Fuxing CR400 series). However, based on the research of different platforms, it is learned that the "Harmony" models that are being issued cannot be interconnected due to the inconsistent standards, and it is difficult to spare each other, which increases the operation and maintenance costs.

The value and significance of "Harmony":

"Harmony" not only means speed, but also means harmony, and "Harmony" marks the railway's practice of the concept of harmony. Whether it is the naming of the "Harmony" EMU train and the Harmony high-power locomotive, or the declaration of "the sixth speed increase of China's railways, the pursuit of harmony", it all highlights and entrusts the good wishes and unremitting efforts of the railway people to build a harmonious journey, build a harmonious railway, and build a harmonious railway. The implementation of the existing line speed increase is the most realistic and effective way to alleviate the "bottleneck" constraints of the railway.

The "Harmony" electric EMU is a major achievement of China's railway to fully implement the independent innovation strategy, marking that the technical level of China's railway passenger equipment has reached the world's advanced level, and China has become one of the few countries in the world that can independently develop EMUs with a speed of 380 kilometers per hour.

Intercity trains can reach up to 350kg per hour at a minimum.