Hello, I'm Julina.

Hello, everyone, this issue of "People Interview" is meeting with you again. Speaking of talents, as a scientific research institute with obvious engineering characteristics, Tsinghua Tianjin Equipment Institute has never lacked male high-end talents. However, what I want to introduce to you today is a female doctor with both good looks and academic qualifications. It is more appropriate to use the phrase "women do not give way to eyebrows. Let's follow the pace of the editor and get to know Dr. Julina from the Wheel-Rail Relationship and Maintenance Research Center (referred to as "Wheel-Rail Center") ~

 

 

Hello, Dr. Zhu. I'm glad you are interviewed as our guest of character interview in this issue. Just listening to the name, I think the three words Zhu Lina can easily be labeled as a young woman in literature and art. I didn't expect to be a female doctor of engineering with Yan value. Please introduce yourself first and let everyone know you ...... For example, where are you from, graduate school, and what is your current position in the institute?
Hello everyone, I am Zhu Lina from the Wheel-Rail Relations and Maintenance Center, from Baotou, Inner Mongolia. Ben Shuo and Bo are all studying in Tianjin University, majoring in material processing, and graduated with a doctor's degree in 16 years. At present, he holds the position of technical director in the wheel rail center, and is responsible for the project declaration and technical research related work in the railway industry.

 

Dr. Zhu worked in our research room at the earliest, and he left for a while. Can you introduce this process and what kind of opportunity made you return to the wheel rail center again?
Yes, after graduating from my PhD in 2016, my first job was to work in the bogie research room under the wheel-rail center. My major is metal materials, metal materials welding, corrosion and fatigue problems, material problems exist in all walks of life, it is a basic discipline.
At the beginning of my employment, I had no foundation in the rail transit industry. It can be said that Feng Quanbao, director of the wheel and rail center, was my leader in this industry. Special thanks to the platform provided by Tsinghua Tianjin Equipment Institute, which allowed the "workplace white" at that time to get close to the "industry bull" and rapidly improved their professional skills. In the work, every little joy of progress is not worth mentioning in front of director Feng's erudition and experience. In the expert team, hard work and hard work are my working attitude. The three years in the Institute are my most valuable experience, and I have established a deep "revolutionary friendship" with Director Feng and his team members ".
In 2019, when the cooperative enterprise of the bogie research office withdrew its capital, and at the same time, I wanted to have a broader understanding of the rail transit industry, so I left Tsinghua Tianjin Equipment Institute and joined a certification agency in Beijing to engage in product certification in the rail transit industry and systematic safety assessment of subway engineering. This work experience has given me a fuller and more comprehensive understanding of the vehicles, signals, tracks and other systems in the rail transit industry.
Enterprises and research institutes are two different working atmospheres. With the comparison of the two kinds of work, I gradually found that I prefer scientific research work. In 2021, I finally got a chance. This year, our team participated in a research project of EMU life cycle health management system, in which the fatigue life extension of vehicle welding structure is carried out by uniting many well-known universities and laboratories at home and abroad, and its technical means and test scheme are at the international leading level. The cutting-edge research content of this subject and the "luxurious" scientific research lineup attracted me deeply. So I joined the director's team again and started my new scientific research journey.

Welcome Dr. Zhu to return to the big family of Tsinghua Tianjin Equipment Institute again and start a new scientific research journey. The wheel-rail center is a very important team in the field of rail transit in our hospital. It must have its unique advantages to attract Dr. Zhu back. Can you introduce the main core technologies and businesses of our team?
Yes. First of all, the wheel-rail center was established under the leadership of Academician Zhai Wanming. As a leader in China's rail transit industry, Academician Zhai has made outstanding contributions to the development of my country's rail transit. I am very honored to be a member of Academician Zhai and Director Feng's team.

 

 

In 2020, Academician Zhai undertook the first major consultation and evaluation project of the Department of Science of the Chinese Academy of Sciences, "Research on the Development of China's Rail Transit Strategy", which consists of three sub-topics. tsinghua tianjin equipment institute to undertake the second sub-topic "fast/heavy haul freight railway technology innovation and development strategy research". As the main research team, we have done in-depth and detailed research under the leadership of Director Feng.
Just like the name of our center, we have participated in many researches on wheel-rail relationship and maintenance in recent years: we have undertaken a major project on the development of the key wheel-pair radial monitoring system of Tianjin Science and Technology Commission, and the Tianjin Communications Commission project jointly declared with Tianjin Metro Group and Tongji University-the research project on vibration and noise of urban rail transit.
Secondly, as our long-term strategic partner, German Railway System Technology Co., Ltd. (DBST) has maintained a good cooperative relationship over the years. We are committed to integrating Germany's advanced railway technology with China's rail transit and realizing the localization of key technologies.
In addition, our team has been conducting long-term in-depth and extensive research on European rail transit technology innovation. The innovative ideas and direction, technical achievements and project management of European rail transit have played a very good reference role in the technological innovation of China's rail transit and even the whole industry. Based on this research direction, in this year's summer graduate internship in Tsinghua University, Tsinghua University and equipment institute leaders alike.

 

The above-mentioned field is very professional, in fact, our team's research is very cutting-edge. Can you tell us about the relevant work you are mainly responsible?
I have participated in the projects of the Chinese Academy of Sciences and other longitudinal projects. In addition, I have also engaged in cutting-edge scientific research work such as the design of titanium alloy bogies highly related to the profession, the dissimilar welding process of high-speed trains, and the life extension of welded structures of high-speed trains.
I believe that all these cutting-edge scientific research work will have different inspirations and contributions from a female perspective. What is the development direction of the Institute in the transformation of scientific and technological achievements?
Rail transit, as a cross-disciplinary and multi-disciplinary industry, has a long time period and difficulty in transforming scientific research achievements. In the early days of the establishment of the wheel-rail center, the team was mainly engaged in a number of basic theoretical research, such as vehicle-track coupling dynamics and wheel-rail force dynamic monitoring technology. After years of unremitting efforts of our team, we have successfully developed a set of wheelset radial monitoring system and obtained a number of patents.

Congratulations, it is also an important promotion to the development of our national rail transit. Can you give us some more popular science, how the radial monitoring system will be applied in the future, or what is its role? We are also very concerned about the development of the institute now, as far as you know, what are the near-term goals of our institute?
The radial detection system we developed is currently suitable for subway. In the subway operation, there will be polygonal wear in the circumferential direction of the wheel, which will aggravate the action force between the wheel and the rail. This will increase the noise inside and outside the vehicle, and at the same time cause vehicle vibration, reduce the fatigue life of the axle, axle box and other components, and adversely affect the comfort and safety of the vehicle.
At present, vehicle wheel maintenance can only be carried out based on static inspection, poor vehicle running state, passenger complaints, etc., resulting in increased cost of rotation repair. The operation safety and riding comfort of the vehicle are not guaranteed.
The wheelset radial monitoring system developed by our team realizes the continuous and accurate dynamic measurement of wheel-rail force under the operation of subway vehicles, and intelligently analyzes the collected data through the internal expert system, thus completing the diagnosis of wheel defects and the real-time alarm of fault wheelsets. It provides basic data for the establishment of wheel preventive maintenance system, and takes into account the operating cost while ensuring the safety and stability of vehicle operation.
The wheel-rail center hopes to translate more theoretical research into practical products.

 

 

I hope that this goal will be achieved soon. To ask a broader question, our country's rail transit technology has a leading edge in the world. What do you think of the future development of this field?
China's rail transit from scratch, from "follower" to "leader", I am very honored to be a member of this industry. I personally think that China's rail transit has come to "no man's land", and China's high-speed rail has become a beautiful business card of China. Green, healthy and intelligent will become the main direction of the future development of China's rail transit.

That's great. It must be very pleasant to work in such a field with a leading edge in the world. What is your personal goal in your work?
Combined with my professional knowledge, I have made a difference in the rail transportation industry. Director Feng, as my industry mentor, hopes to be infinitely close to "Idol.

 

 

next time we hope to be able to interview director feng ha. I heard that Dr. Zhu has just got married and completed a great event in his life, and his lover is also a colleague of the Wheel and Rail Center. It can be said that the research institute became a matchmaker and fulfilled this marriage. Can you share this joy with us? Is he from Tianjin?
Unexpected gains, it is quite happy to find a partner with a common topic. They are indeed Tianjin people.

The man who can "Hold" a female doctor must be an excellent man with a broad mind. I am glad that this man is also from our research institute. It seems that you and Tianjin really have a deep fate. After many years of school, you have become Tianjin's daughter-in-law. Tianjin can become your second hometown. Do you have any other brothers or sisters in your family?
My father is from Tianjin and half of my relatives are in Tianjin. So I have a strong "nostalgia" to Tianjin since I was a child ". I like the snacks of Tianjin and the unique sense of humor of Tianjin people. Therefore, I went to Tianjin to study, work and have a family. Tianjin is indeed my second home. I am the only one in the family, but there are still many cousins in Tianjin.

Are there any special events or people in your life that have particularly influenced you?
Must be sealed director ah, ha ha. Of course, I am also very grateful to all the people who helped me.

Can you talk to us about your future goals in life?
To give birth to a baby, it is best to let him/her also engage in this field. This industry is so fun.

 

 

The whole family is really in one area with endless topics. Here we send our best wishes to Dr. Zhu. We hope to welcome the smart and lovely little Baby as soon as possible. We also wish Dr. Zhu continue to climb the peak of scientific research and achieve better results. The wheel and rail center team will continue to explore and forge ahead, and contribute more to the cause of rail transit in China. Let's finish today's interview by completing our Proust questionnaire.

 

Proust Questionnaire

1. What kind of talent do you most want to have?
Never forget

2. What is your favorite occupation?

Now the occupation ah

3. How is your current state of mind?
Enrich, busy, practical

4. What are you dissatisfied with about your appearance?
My parents gave it to me. I'm very satisfied with it.

5. Who do you admire most?
Director Feng Quanbao, there is no doubt

6. What is your biggest regret?
Poor cooking, all depends on Mr. (ha ha, I'm in the show)

 

Report by the Enterprise Publicity Office of the Hospital Affairs Department
Editor | Wang Xiao