There is me in the revival of the strong country.

For the top scientist Zhai Wanming, a high -speed rail study, the first train of life "is not a kind of enjoyment at all."

In 1981, Zhai Wanming was admitted to Southwest Jiaotong University. He took the train from his hometown of Jiangsu Jingjiang to Emei, Sichuan. The road encountered the landslide and moved to Shanghai and Kunming.

Can the train run faster? Can you sit more comfortably? These issues have since become the driving force for Zhai Wanming's learning and research and lasted more than 40 years. Until today, China ’s high -speed rail leads the world, Zhai Wanming, an academician of the Chinese Academy of Sciences, a foreign academician of the National Academy of Engineering, and the chief professor of Southwest Jiaotong University, still has not stopped pursuing this problem.

When he was a student, he studied thirsty. Except for watching an open -air movie every Saturday, he had almost no other entertainment activities. Most of the spare time was studying for self -study, so he laid a solid professional foundation. In 1991, the 28 -year -old Zhai Wanming was promoted to an associate professor. In 1994, at the age of 31, he was promoted to a professor again and became the youngest professor in the national railway field at that time.

Zhai Wanming was a group of college students earlier after the college entrance examination, early reform and opening up. During college, he submitted an application for the party. After the graduate student enrolled in 1985, he finally joined the Communist Party of China. He said that I was born in the countryside and knew that I could have the opportunity to go to college and be inseparable from the party's good policy.

During the blog, the computer resources were insufficient, and Zhai Wanming used the school's computer room. When there are many people in the machine room during the day, he carried out theoretical derivation and analysis. After others left at night, he got into the computer room and entered a group of calculation parameters into different computers. A large number of data came out.

Now, he still maintains the habit of "peak peak". After becoming an academician, he faced more heavy work tasks, but every day from 11 to 13, 17:00 to 19:00, that is, when others were off work and eating, he was immersed in the quiet time of academic ocean.

Zhai Wanming has long been engaged in research on dynamics and vibration control in the field of railway engineering. Based on the classic vehicle dynamics and rail dynamics theory, he created a new theoretical system for vehicle -rail coupling dynamics, established a unified track model of vehicles -the best matching design principles and methods for motor vehicles and line dynamic performance. Essence

He also presided over the study and establishment of the theory of train -track -bridge power interaction, proposed a new type of fast numerical points suitable for large system dynamic analysis, and developed a high -speed train crossing bridge dynamic simulation and safety assessment system. These achievements have been summarized as "Zhai Model" and "Zhai Method" by international colleagues, which have been successfully used to solve a series of technical problems in China's railway acceleration and high -speed railway key construction projects.

His research has always taken root in the scene of the development of China's railway. The scholar believes that there is a big difference from books to reality. "No matter how good the theory is, it is not enough to receive inspection in practice, which is to talk about soldiers on paper."

In order to verify his research, Zhai Wanming often followed the railway safety officer to walk on a pillow and a pillow to find the answer at the scene, and conducted a large number of investigations and on -site trials. Prior to the opening of the Beijing -Tianjin intercity railway in 2008, the Ministry of Railways organized a high -speed driving test. In order to collect a high -speed driving dynamics performance indicator on a high -speed driving dynamic performance on the bridge, he took the test team at the scene for 35 days.

"The data passed every trip is precious." Speaking of the process of collecting data in the Beijing -Tianjin intercity, Zhai Wanming couldn't hide his excitement. He remembered that the maximum speed of the train passed reached 390 km/h, which was the highest speed at that time at that time. The test data obtained was important for their theoretical research.

Zhai Wanming said that in the past, there were few opportunities for on -site trials, but with the 6 -speed acceleration of the Chinese railway and the subsequent high -speed development, such opportunities were increasing. At the beginning of 2011, at a line test site at a section of the Beijing -Shanghai high -speed rail, the speed of the train exceeded 430 kilometers/hour. Zhai Wanming's team measured the characteristics of rail dynamics and surrounding ground vibration. , Get widespread attention and citation from international peers.

In the spiral process of theoretical-test-application-theory, Zhai Wanming's research was fruitful and was also applied to the project site of the Chinese high-speed rail. For example, the design standards of railway bridges were only suitable for driving speeds below 200 km/h. After speeding up, accurately evaluating the safety of high -speed trains through bridges is important. After hard work, the cross-disciplinary joint research team led by Zhai Wanming proposed the theory of train-rail-bridge power interaction, established a dynamic design safety assessment method for high-speed trains across the bridge, and successfully solved the above-mentioned project problems.

His theoretical monograph "Vehicle-Rail Coupling Dynamics" has been published to the fourth edition, and the English version was published in 2020, which is well-known at home and abroad. Professor Hans True, former chairman of the International Vehicle Dynamics Association, commented that this is the first book in the field of railway vehicle-rail dynamics, which helps China to develop the world's largest high-speed rail network in a very short period of time.

At the Southwest Jiaotong University he works, many foreign colleagues, especially young scholars, to visit and study every year.Wan Ming said.He is also often invited to give a keynote report at an important academic conference in the field of rail transit.Now, Zhai Wanming is still answering the questions raised in his youth with his own research and practice. He said: "China's high -speed rail will continue to move along with two goals. One is a higher speed, and the other is more intelligent.Serve the people. "

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