1, presided over the research and construction of the world's only "Qinghai-Tibet railway traffic safety guarantee system in extreme bad wind environment"
The wind environment along the Qinghai-Tibet Railway is very complicated, and extreme bad weather with transient wind direction frequently occurs, with an average annual gale of about 150 days, which seriously threatens the safety of railway transportation and becomes a major problem to be solved urgently in the safe operation of this snowy area. And there is no technology in the world that can be directly used for reference. Facing the opportunities and challenges brought by history, Tian Hongqi has traveled all over the Qinghai-Tibet Plateau for three years since 2002. On the basis of obtaining a large number of field data and pre-research, the development and construction of an automatic command system for driving safety in strong winds was put forward, which was immediately approved. With a lofty sense of responsibility and honor, Tian Hongqi first studied the aerodynamic characteristics of wind/vehicle/road/landform coupling, found a series of laws, put forward an analysis theory that had not been published at home and abroad before, and established a safe speed limit model to avoid train overturning in special wind environment, which laid a theoretical foundation for completing the task on time with good quality. In the research and construction of gale monitoring and early warning and driving command system, technical difficulties have been overcome, and good news has spread frequently: the wireless intelligent anemometer station located in the wind volcano has been successfully installed and debugged; The data collection and transmission of unattended anemometers in the 960km wind area under its jurisdiction are normal; The world's only "plateau railway gale monitoring and early warning and traffic command system" has been put into uninterrupted operation. Since it was opened to traffic in 2006, when and where all trains need to stop, speed limit or maintain a constant speed, the system will automatically command and dispatch them in the windy environment of Qinghai-Tibet Railway. After three years of uninterrupted operation, the system is stable and reliable. The train has stopped for 28 times, with a speed limit of 385 times, and no traffic accidents caused by strong winds have occurred. The traffic safety guarantee system of Qinghai-Tibet Railway in bad wind environment has been established, and an integrated system of theory, technology, engineering and application has been formed. It has achieved a major technological breakthrough in the ability of railway transportation to cope with severe wind disasters. As a demonstration, this achievement is being applied to Lanzhou-Xinjiang Railway, fuzhou-xiamen railway-Shijiazhuang Railway, Beijing-Shanghai, Wuhan-Guangzhou and other high-speed passenger dedicated lines. This achievement is one of the core technologies of the National Special Prize for Scientific and Technological Progress "Qinghai-Tibet Railway Project", and Tian Hongqi is the only one who won this honor.
2. Establish a research system of railway aerodynamics to solve the bottleneck problem of accelerating the development of high-speed aerodynamics in western China.
Aerodynamics is the bottleneck of railway speed-up and development. Excessive air resistance and traffic accidents caused by aerodynamic forces seriously restrict the improvement of train speed. For example, the air resistance of high-speed trains accounts for about 70% of the total resistance; The transient impact pressure and air pressure explosion wave when the train passes through the tunnel at high speed will damage the car body and tunnel structure, and the eardrum of human body will be damaged. Trains are large objects running on the ground, and there are a series of aerodynamic problems different from aerospace vehicles, such as train intersection, tunnel passing and continuous ground effect. Therefore, since the development of high-speed railway in China in 1990, Tian Hongqi has systematically studied the railway aerodynamics problems that need to be solved urgently under the condition of keeping the core technology of foreign countries confidential. Establish the basic research, technology research and development and engineering application system of China train aerodynamics, and make China's research in this field step into the forefront of the world. From scratch, it took three years to build a "dynamic model test system" which is complementary to the space wind tunnel test, the only one in China and the leading level in the world, and has become an irreplaceable model test device for studying the unique aerodynamic effects such as train intersection and train/tunnel coupling in rail transit. Through experimental discovery and theoretical modeling, a series of analytical theories verified by experiments are put forward, which have high academic level and engineering application value; Presided over the development of 120 km/h ~ 500 km/h on-line comprehensive test technology of train aerodynamics on real vehicles to fill the gap in China, and established the evaluation method of train aerodynamic driving safety in China, becoming the only unit of the Ministry of Railways to undertake the evaluation of railway aerodynamic driving safety; The methods of train aerodynamic shape structure development, optimization of train-tunnel coupling aerodynamic structure, and determination of railway pneumatic transportation mode were established, which provided the safety guarantee of train, tunnel and transportation aerodynamics for 250km/h operation of existing railways in western China and 350 km/h operation of Zhengzhou-Xi 'an high-speed passenger dedicated line. The independently written and published "Train Aerodynamics" is the first aerodynamic academic work in the field of rail transit in China. Presided over the aerodynamic performance optimization of 200 km/h ~ 350 km/h Harmony CRH2 EMU, and completed the shape and structure design of all ***33 domestic streamlined trains that have been put into operation; The aerodynamic effects of vehicle-tunnel coupling on Chengdu-Chongqing, Shitai, Zhengzhou-Xi 'an western railway passenger dedicated lines with constant speed of 200 km/h ~ 350 km/h are studied. Presided over the completion of all aerodynamic traffic safety assessments for six speed increases of existing railways in China, including western railways such as Xinjiang. It has solved the major technical problems in aerodynamics such as the development of new vehicles, the research and construction of tunnels and the determination of pneumatic transportation modes in the construction of high-speed railways in China, and made a pioneering contribution to the theoretical research and engineering application of railway aerodynamics in China. According to relevant data of Hunan Daily, as of 20 1 5 65438+February 1 1, Tian Hongqi * * * published academic monographs1and edited 65438 books each; EI and SCI collected 42 papers.
Some papers published by Tian Hongqi are as follows:
Yan, Gong Zhiqiang. Shape optimization design of new elastic coupling [J]. Railway rolling stock, 2007,45 (5): 4
Xu Ping, Tian Hongqi, Yao Shuguang. Design method of streamlined train head modeling [J]. China Railway Science, 2007,28 (1): 76
Yan,,,, Wang Mingxing, Yang Jun. Development of rubber buffers for locomotives [J]. Railway rolling stock, 2007,27 (2): 30.
[4] Xu Ping, Tian Hongqi and Yao Shuguang. Integrated design and manufacturing method of streamlined train head [J]. journal of traffic and transportation engineering, 2007,7 (1): 6
Yao Song, Tian Hongqi. Compression storage and assembly of finite element stiffness matrix [J]. Journal of Central South University: Natural Science Edition, 2006,37 (4): 826
Zhou Dan, Tian Hongqi and Luzhaijun. Optimization of aerodynamic shape of domestic maglev train [J]. Journal of Central South University: Natural Science Edition, 2006,37 (3): 613.
Liu,, Comparison of aerodynamic performance of different maglev train shapes [J]. Journal of National University of Defense Technology, 2006,28 (3): 94
, Xu Ping, Liang Xifeng, Liu. Relationship between pressure wave and train speed [J]. China Railway Science, 2006,27 (6): 64
Tian Hongqi, Zhou Dan, Xu Ping. Aerodynamic performance and streamlined head shape of trains [J]. China Railway Science, 2006,27 (3): 47
Liu, Liang Xifeng. Experimental study on the intersection of "Changbai Mountain" high-speed train and freight car [J]. China Railway Science, 2006,27 (3): 56
He Hua, Tian Hongqi, Xiong Xiaohui, Xifeng Liang. Study on aerodynamic performance of gondola cars under crosswind [J]. China Railway Science, 2006,27 (3): 73.
Xu Ping, Tian Hongqi, Yao Shuguang. Design method of streamlined train head structure [J]. China Railway Science, 2006,27 (1): 78.
Thanks, Yao Song. Finite Element Analysis of Plate-Beam Eccentric Connection Structure [J]. journal of traffic and transportation engineering, 2006,6 (4): 5.
Miao Xiujuan, Gao. Aerodynamic performance of side wall shape of boxcar in strong crosswind environment [J]. journal of traffic and transportation engineering, 2006,6 (3): 5
Tian Hongqi. Research progress of train aerodynamics in China [J]. journal of traffic and transportation engineering, 2006,6 (1):1.
Yao Song, Tian Hongqi. Construction and Application of DKQ Bending Element [J]. journal of traffic and transportation engineering, 2006,6 (1):16.
Zhang Yicheng, Tian Hongqi. Study on Oil Supply Capacity of Involute Gear Transmission [J]. Lubrication and Sealing, 2006, (8):52
[18] Lu Zhai Jun of Zhou Dantian Red Flag. 270, KM H- 1 modal analysis of high-speed emu [J]. China Railway Science, 2005,26 (6):18
Gao, Yao Song,. Analysis of train multi-body coupling collision [J]. China Railway Science, 2005,26 (4): 93.
[20] Fan Jiang, Chen Weiping, He Hua, Tian Hongqi. Train domestic sewage reuse system [J]. China Railway Science, 2005,26 (3):141.