Wen Bangchun, a native of Hangzhou, Zhejiang, 1930, was born in Wenling, Zhejiang. Expert in mechanical dynamics and construction machinery, mechanical educator, academician of China Academy of Sciences, and pioneer of "Vibration Utilization Engineering" in China. He has served as a teaching assistant, lecturer, associate professor and professor in department of mechanical engineering of Northeast Institute of Technology, and director of the Institute of Construction Machinery of Northeastern University.
1955 graduated from the mechanical and electrical department of northeastern university, 1957 graduated from the graduate class of mechanical department. 199 1 was elected as an academician of China Academy of Sciences.
Wen Bangchun has long been engaged in the theoretical research of vibration machinery and the development of new vibration machinery.
Chinese name: Wen Bangchun.
Nationality: People's Republic of China (PRC).
Ethnic group: Han nationality
Place of birth: Hangzhou, Zhejiang Province
Date of birth:1September 29, 930
Occupation: educational and scientific research worker
Graduate school: Northeast Institute of Technology (now Northeastern University)
Main achievements: Third Prize of National Invention Award (1985)
Second Prize of National Science and Technology Progress (2008)
Guanghua Engineering Science and Technology Award (2006)
First Prize of Scientific and Technological Progress of Ministry of Education (2006)
199 1 was elected as an academician of China Academy of Sciences.
Representative works: Theory and application of vibrating machinery, mechanical vibration, etc.
Character experience
1930 On September 29th, Wen Bangchun was born in Hangzhou, Zhejiang Province, and his ancestral home was Wenling County, Zhejiang Province (now Wenling City). His father is a senior engineer engaged in geodesy, and his uncle is a university professor, so it is natural to arrange for him to study. But when he was in primary school, his grades were always poor.
From 65438 to 0946, Wen Bangchun graduated from Zhi Zhi Middle School (now Xinhe Middle School), a middle school with decent study style, rigorous teaching and strong teachers in Wenling, Zhejiang Province, and was admitted to Taizhou Middle School (now Taizhou Middle School), which is known as the "highest institution of learning" in Zhejiang Province.
The study life in high school is unforgettable for Wen Bangchun. Taizhou Middle School is dozens of miles away from Wen Bangchun's home. In order to save money, Wen Bangchun has to travel all day every time he goes home or back to school. This hard environment not only exercised his will, but also learned knowledge.
1July, 949, Wen Bangchun was a senior in high school, and his hometown was liberated. Wen Bangchun and more than 30 students joined the China People's Liberation Army on June 1949+00 because of their longing for the new system and new life.
From 65438 to 0950, Wen Bangchun suffered from lymphoid tuberculosis and was demobilized to his hometown. Military life has cultivated Wen Bangchun's fearless spirit, developed a fast work style, a simple lifestyle and a strict concept of time. These life experiences have accumulated valuable spiritual wealth for Wen Bangchun.
195 1 year, People's Republic of China (PRC), which has just been established for two years, started to formulate its first five-year plan. Thousands of young people in China are marching towards a vast world of peaceful construction. It is in this case that Wen Bangchun was admitted to the Mechanical Department of Northeast Institute of Technology (now Northeastern University) after he retired from the army and went home to make up high school courses.
From 65438 to 0955, Wen Bangchun entered the postgraduate class of Northeast Institute of Technology and studied under the guidance of Sosunov, a Soviet expert and vice president of Moscow Mining Institute. He chose the subject of "vibrating machinery" which was badly needed by the country at that time as the research direction.
In order to master this new subject quickly, Wen Bangchun taught himself more than a dozen courses, such as mathematical equations, mechanical vibration, nonlinear vibration, German, etc., and combined with his own experimental research, he published five papers on the theory of vibrating machinery in succession. Among them, the research results in two papers, the theory of material motion on elliptical vibrator and the theory of material motion in vibrating centrifuge, were first put forward at home and abroad at that time, which had important reference value for the design and manufacture of vibrating machinery. A graduate student who has achieved such results has been praised by Soviet experts and aroused great repercussions in the whole school.
Soon, through experiments and theoretical analysis, Wen Bangchun found that a formula for calculating vibration screening dynamics of Professor levinson of the former Soviet Union was wrong in several textbooks of mineral processing machinery and casting machinery in the former Soviet Union. Later, Wen Bangchun wrote a paper and bravely pointed out the mistakes of levinson's formula. Sure enough, Wen Bangchun's move caused criticism. Soon, some people at home and abroad discovered the error of this formula through research, and Soviet textbooks also revised this formula.
1957, Wen Bangchun graduated from the graduate class of Mechanical Department of Northeast Institute of Technology and stayed as a teacher.
Just as he was preparing to make a career in the field of vibration utilization engineering, China launched a series of political movements. Because Wen Bangchun is devoted to business and his family background is a landlord, almost every action is criticized, and "accusation" is "a road without roots".
1960, all the students who graduated with Wen Bangchun were promoted to lecturers by teaching assistants, while Wen Bangchun, who was excellent in teaching and scientific research, was not promoted, but was sent to work on a school-run farm. He endured all this silently. He didn't change his mind, and the paper couldn't be published, so he wrote it. He knows that summing it up and writing it out is to accumulate information, which will come in handy one day. He refused to pay attention to teaching and scientific research projects, so he secretly "trained". Run to the flea market, buy some parts and tools, use rubber as a spring, wrap a small motor with enameled wire, do some small models and experiments by yourself, and accumulate data and knowledge.
1962, Wen Bangchun got married. His wife works in Sujiatun, which is more than 30 miles away from the city. After he got married, he lived in both places. It was not until 1978 that his wife was transferred to work in Shenyang. For more than ten years, Wen Bangbang has to ride his bike home several times a week, and it takes more than 70 miles to go back and forth each time, and it takes nearly three hours on the road.
Starting from 1972, he began to write the book Theory and Application of Vibrating Machinery based on his years of research and teaching. He repeatedly deduced and verified every formula and every theory. If there are no prototypes and instruments, do it yourself. I cut the plate and cut the material by myself, cut the spindle by lathe, and weld the parts by welding machine. I have made samples of vibrating screen, electromagnetic vibration feeder and other experimental machines successively, and obtained the necessary data through experiments.
1975, after accepting the research and design task of Beijing iron mine vibrating conveyor, Wen Bangchun led six students to the scene. Someone said, "This long-standing problem cannot be solved by big design institutes, students who have not graduated from several universities and 1 teachers." Faced with these situations, they started with investigation and research, and trained students through scheme discussion, model test, drawing design, manufacturing, installation and debugging. After more than a year's efforts, four vibrating conveyors with a length of more than 20 meters have finally been successfully developed, and their performance fully meets the production requirements. The unit leaders, workers and technicians spoke highly of it. He also instructed students to improve their theoretical level, wrote six academic papers and published them in relevant domestic magazines. The project passed the technical appraisal and won the scientific and technological progress award of the Ministry of Metallurgical Industry.
1978, he led the students and comrades in the first grinding wheel factory of the Ministry of Machinery to successfully develop a self-synchronous probability screen, and the output per unit area was five times higher than that of other types of vibrating screens. This project fills the gap in China.
After 1978, many books and more than 0/00 papers have been completed, and more than 0 kinds of vibrating machinery and engineering machinery 10 have been successfully developed for metallurgy, coal, machinery, electric power, railway, light industry and other departments, creating great economic and social benefits.
1982, it took seven years before and after, and the draft was revised several times. The draft paper used can hold a sack, and finally a monograph of 600,000 words was completed. Theory and Application of Vibrating Machinery is published by Machinery Industry Press. Reviewed by more than 20 experts, it is considered that this book is "rich in content, creative and practical, and has important guiding significance for scientific research, design and production." Hundreds of theoretical formulas put forward in his book have been adopted by many scientific research, design and production departments. This monograph has made an important contribution to the establishment of a new branch discipline "Vibration Utilization Engineering" in China, and laid a theoretical foundation for this discipline.
1983, on the eve of July 1st, joined the China * * * production party; In the same year, Wen Bangchun was one of the passengers in the hijacking of Flight 296 that shocked China and foreign countries. He is fearless in times of crisis. In order to avoid accidents and make all the passengers return to the motherland as soon as possible, he drafted a statement, which was signed by all the passengers and passed to the Japanese Embassy in China through three Japanese friends on board, and then to the Secretary-General of the United Nations. The statement called on relevant UN organizations and the International Red Cross to punish the hijackers, ensure the safety of all passengers and return to Chinese mainland.
1983, 1988 and 1993 were elected as members of the sixth, seventh and eighth Chinese People's Political Consultative Conference for three consecutive times.
1985 was hired as a member of the evaluation group of mechanical engineering discipline of the second and third the State Council Academic Degrees Committee.
1987 was elected as the vice chairman of China Vibration Engineering Society.
From 65438 to 0989, Chemical Industry Press published his second monograph, Design and Debugging of Vibrating Screen, Vibrating Feeder and Vibrating Conveyor.
1990 was hired as a member of the international rotor dynamics Committee.
199 1 year1kloc-0/month was elected as an academician of China academy of sciences (later renamed as an academician).
Major achievements
achievements in scientific research
Wen Bangchun systematically studied and developed a new science "Vibration Utilization Project" which combines vibration science with mechanical science. The rotor dynamics, nonlinear vibration theory and application of mechanical system, vibration diagnosis of mechanical fault and some problems of construction machinery theory are studied. More than 0/0 sets of new vibration machinery and engineering machinery have been successfully developed, and the developed "inertial vibration probability sieve" and "vibration exciter deflection large-scale cold ore vibrating screen" have reached the international advanced level.
According to the information of official website of Northeastern University from 2065438 to February 2005, Wen Bangchun has successively completed dozens of national and horizontal major scientific research projects, including major projects of the National Natural Science Foundation, general projects, 973 and 863 projects.
In the late 1950s, Wen Bangchun published five academic papers on the theory of vibration machinery in national magazines. Among them, three papers, The Theory of Material Motion on Elliptical Vibrator, The Theory of Material Motion in Vibrating Centrifuge and The Working Theory of Nonlinear Vibrating Screen, are the first research achievements in China and other countries.
The victory of the first battle strengthened Wen Bangchun's confidence. But in further research, he encountered many difficulties. The theoretical results need to be verified by experiments. Without a test prototype, he did it himself, cut the plate and cut the material, turned the spindle on the lathe and welded the parts with an electric welding machine. Finally, he made experimental prototypes of vibrating screen and electromagnetic vibration feeder. In order to get more experimental data, we sometimes go to the scene to do experiments. He combines the research of various vibrating machines, such as spring vibration isolation double-tube vibrating conveyor, inertial vibrating feeder, self-synchronous probability screen, electromagnetic vibrating feeder, cold (hot) sintering vibrating screen, self-synchronous inertial vibrating ore drawing machine, inertial vibrating probability screen and so on. Many original research results on the theory of vibrating machinery are put forward.
For example, systematically study the technological process theory of vibrating machinery, including the material movement theory and probability screening theory on various vibrating machinery. The synchronization theory of mechanical system is studied in detail, including the synchronization theory of self-synchronous vibration machine with deflection exciter and the stability theory of synchronous state, the synchronization theory of spatial motion vibration machine and the vibration synchronous transmission theory. The dynamic characteristics of vibration systems of various nonlinear vibration machines are studied, including the working principles of electromagnetic and inertial nonlinear vibration machines, and the calculation methods of working points and dynamic parameters of these vibration machines are put forward. Various modes of large vibrating machinery are studied, and the methods to prevent bending vibration of this kind of vibrating machinery are put forward.
Wen Bangchun, together with other colleagues, has successfully developed 10 kinds of new vibration machinery and construction machinery, and 12 achievements have passed the technical appraisal at the ministerial and provincial levels. The new machines that he and the comrades of the scientific research group have successfully developed include inertial vibration probability screen, large cold sintering vibrating screen, long-distance vibrating conveyor, large vibrating ore drawing machine, large uncovering screen cleaner, self-synchronous probability screen, probability equal thickness screen, self-synchronous linear vibrating screen, high and medium frequency vibrating fine screen and so on. These machines have been successfully used in machinery, electric power, construction, building materials, railways, chemical industry, coal, metallurgy and other industrial sectors, totaling more than 200 sets, creating huge economic benefits for the country.
Because the machine he studied is directly used in production, when there is a problem, it must be dealt with quickly in a short time. As the person in charge of the project, he often takes great risks. Faced with these problems, he often stays up all night, goes deep into field investigation and research, experimental measurement, and solves them one by one by using the theories and scientific methods he has mastered. Most of the machines he successfully developed have innovative parts.
He attaches great importance to the reliability and advancement of use, and many machines are successfully developed according to his own theory. For example, 1985 won the National Invention Award, and 1987 won the "Eureka" gold medal in Brussels International Invention Expo, Belgium. By applying his probability screening theory and nonlinear near-vibration machinery theory, the inertia * * vibration principle and probability screening principle are organically combined to realize screening, feeding and support on the same machine. This new screening machine has the advantages of quick start, quick stop, low noise, good dust prevention, low energy consumption, both feeding and screening, and dual use of one machine. It is completely suitable for computer automatic control and automation. It is the first new equipment in China's vibration machinery field at home and abroad, and more than 65,438+000 machines have been used in China's industrial sector.
The large-scale cold sintering vibrating screen won the 1985 National Science and Technology Progress Award, and applied the theory of self-synchronous vibrating machine with deflection exciter first put forward by Wen Bangchun. The synchronization criterion and the stability criterion of synchronous state obtained by him applied the secondary vibration isolation theory, which solved a difficult problem in metallurgical industry. At present, it has been widely used in more than 0/0 iron and steel enterprises in China, accounting for about 2/3 of the cold ore vibrating screen used in China. This screen has been used in Capital Iron and Steel Company for 10 years and is still in use. In contrast, the cold sintered vibrating screen imported from Japan has only been used for one and a half years, and some screen box girders have cracks and must be replaced in time. Each screen imported from Japan costs US$ 300,000-400,000, while China only needs RMB 300,000-400,000 for its own production. It can be seen that the popularization and application of this achievement has replaced similar products imported from other countries except China, and its economic benefits are considerable.
In addition to in-depth research on vibration utilization engineering, Wen Bangchun also made in-depth research on mechanical dynamics and rotor dynamics, nonlinear theory and application of mechanical systems, vibration diagnosis of mechanical faults and working theory of engineering and mining machinery, and achieved many valuable results.
Firstly, the nonlinear theory of mechanical system is developed, and more than 20 academic papers on nonlinear vibration have been published in international conference papers. The main work is as follows: (1) The calculation theory of piecewise mass nonlinear vibration system is studied and developed, and the calculation method of equivalent mass of piecewise mass nonlinear system is put forward; The dynamic characteristics of nonlinear impact vibration system and piecewise linear nonlinear system are analyzed and studied. It is pointed out that there is a special case of negative damping in some nonlinear systems with impact. Together with his graduate students, he studied the global stability of a piecewise linear nonlinear system by cell transformation method, and proposed a method to save computer memory and machine time when using cell transformation method. The numerical solutions of steady and transient processes of some nonlinear systems are studied. Firstly, the harmonic synchronization of two inertial vibration exciters in nonlinear mechanical system is studied, and their synchronization criteria and stability criteria of synchronization state are put forward.
Secondly, the research work in mechanical dynamics and rotor dynamics. He deeply studied the theory of secondary vibration isolation of industrial machinery and applied it to the vibration and impact isolation systems of various construction machinery. Through theoretical and experimental research, the dynamic characteristics of the rotor with transverse cracks and the calculation method of its response are analyzed in detail, and a method of identifying some rotor cracks by using the second harmonic component is proposed. The dynamic response and stability of an axially vibrating rotor are studied. The unbalanced inertia force, rotary moment and its balancing method of conical rotor with gyro effect are studied.
Thirdly, firstly, the method of equipment fault diagnosis based on grey system theory is put forward, and the working principle of a construction machinery is developed. Together with his graduate students, he applied the grey system theory to the fault diagnosis of mechanical equipment for the first time, and put forward the grey prediction method of mechanical equipment state and the grey diagnosis method of mechanical fault. The characteristics of discriminant function in time series method are proposed to judge the types of mechanical equipment faults. At the same time, the judgment method of time series AR model structure is also studied. Cited in the book time series method and its application and related literature. He studied the power transmission characteristics of the settling centrifuge with two rotating drums moving relative to each other, and revealed the secret of the huge circulating power of this machine. He also studied the working principles of inertia cone crusher and vibrating ball mill, which provided a useful theoretical basis for the design of some construction machinery.
According to the information of official website of Northeastern University in June 20 15, Wen Bangchun published more than 700 academic papers in famous magazines at home and abroad, international and domestic conferences, including more than 250 academic papers retrieved by SCI, EI and ISTP, and 28 monographs and chief editor's papers.
Books, textbooks and essays written as the first author.
(1) Theory and Application of Vibrating Machinery (1982, Machinery Industry Press)
(2) Design and debugging of vibrating screen, vibrating feeder and vibrating conveyor, (1989, Chemical Industry Press)
(3) Mechanical Vibration (Metallurgical Industry Press, 2000)
(4) Advanced rotor dynamics (Mechanical Industry Press, 2000)
(5) Theory and Dynamic Design Method of Vibrating Machinery (Machinery Industry Press, 200 1).
(6) Analytical Methods and Engineering Applications in Nonlinear Vibration Theory (Northeastern University Press, 200 1).
(7) Vibration Synchronization and Control Synchronization of Mechanical Systems (Science Press, 2003)
(8) Nonlinear Dynamics Theory and Experiment of Fault Rotating Machinery (Science Press, 2004)
(9) Vibration Utilization Project (Science Press, 2005)
(10) Theory and method of product generalized quality comprehensive design (Science Press, 2006)
(1 1) Engineering Nonlinear Vibration (Science Press, 2007)
(12) comprehensive design of products with full function and performance (Mechanical Industry Press, 2008)
(13) Main and auxiliary functions and function optimization design of products (Machinery Industry Press, 2008)
(14) structural performance and dynamic optimization design of products (Mechanical Industry Press, 2008)
(15) Proceedings of the National Conference on Vibration Utilization and Wave Utilization Technology (Northeastern University Press, 200 1)
(16) Proceedings of the International Conference on Mechanical Dynamics, Shenyang: Northeastern University Engineering Press, 1987.
(17) Proceedings of China Earthquake Symposium, Shenyang, Northeastern University Engineering Press, 1989.
(18) Shenyang: Northeastern University Press, 1998
(19) Proceedings of the Asia-Pacific Vibration Conference 200 1, Changchun: Jilin Science and Technology Press, 200 1
Books, textbooks and manuals prepared in the course.
(20) Hong Zhiyu, Li Yujuan and Wen Bangchun. Continuous conveyor (1984, Machinery Industry Press).
(2 1) Gong, Wen Bangchun, Ding. Mineral processing machinery (1960, China Industry Press).
Zhang Weiping, Wen Bangchun and Xu Dechao. Mechanical vibration (1983, Metallurgical Industry Press).
(23) Wen Bangchun. The vibration and shock handbook, Volume III, Chapter VI, Utilization of vibration (1992, National Defense Industry Press).
(24) Wen Bangchun and Liu Jie. Handbook of Mineral Processing, Volume I, "Screening" (1993, Metallurgical Industry Press).
(25), Zheng, Wen Bangchun and Xu, editor-in-chief, Nonlinear Vibration, Bifurcation and Chaos (1992, Tianjin University Press).
Examples of papers published by the first author
patented invention
Wen Bangchun won the third prize of the National Invention Award and the third prize of the National Science and Technology Progress Award with 1985; 1986 won the third Committee's major scientific and technological achievement award; From 1980 to 1989 * *, it won 8 provincial and municipal scientific and technological progress awards and scientific and technological achievement awards.
International awards:
(1) Inertia * * * Vibration Probability Screen, 1987 won the Eureka Gold Award at the Invention Expo in Brussels, Belgium.
(2) The individual invention of "Knight Medal" won the gold medal at the invention fair in Brussels, Belgium 1987.
National Excellent Science and Technology Book Award:
(3) Theory and Application of Vibrating Machinery 1983 won the second prize of national excellent scientific and technological books.
(4) Advanced rotor dynamics, won the second prize of National Excellent Science and Technology Book 200 1.
Special Award:
(5) Guanghua Engineering Science and Technology Award awarded by China Academy of Engineering in 2006.
National Award:
(6) Some key theories, technologies and applications of vibration utilization and control won the second prize of National Science and Technology Progress Award in 2008.
(7) The major vibration fault handling and nonlinear dynamics design technology of large-scale rotating machinery and vibrating machinery won the second prize of National Science and Technology Progress Award in 2005.
(8) The vibration exciter offset giant cold ore vibrating screen won the third prize of National Science and Technology Progress Award 1985.
(9) Inertia * * * vibration probability won the third prize of 1985 national invention.
Provincial and ministerial awards:
(10) Some key theories and applications of vibration utilization and control won the first prize of scientific and technological progress in Liaoning Province in 2007.
(1 1) The theory, technology and application of vibration utilization engineering won the first prize of scientific and technological progress of the Ministry of Education in 2006.
(12) The mechanism analysis and application of major nonlinear vibration faults of large rotating machinery won the first prize of scientific and technological progress of the Ministry of Education in 2004.
(13) vibrating fine screen, 1986 won the important scientific and technological achievement award of the 653rd Committee.
(14) silicon carbide won the second prize of scientific and technological achievements in Liaoning province by self-synchronization probability screening 1980.
(15)2585 forced synchronous self-synchronous cold ore screen won the second prize of Liaoning Science and Technology Progress Award 1989.
(16) The model test, field test and vibration suppression method of rotating machinery won the second prize of Liaoning Science and Technology Progress in 2003.
personnel training
According to the information of official website of Northeastern University in February, 20 15, Wen Bangchun has successively instructed more than one graduate student 100, among which 87 graduate students obtained master's degrees, 6 graduate students obtained doctoral degrees, 10 postdoctoral students and 1 visiting scholars from Russia and Kazakhstan.
Postdoctoral Representative: Professor Zhang Yimin (distinguished professor, Changjiang Scholar, Ministry of Education).
Representatives of doctors and masters: 26 professors and doctoral supervisors 12.
Doctoral supervisor:, Jiang Zhongwei, Duan,, Liu Jie, Zhang Tianxia, Ba Dechun, Li Yinong, Rui Yannian, Guan, He Weidong, Zhao Chunyu, researcher.
Professors (excluding doctoral supervisors): Professor Cao Zongjie, Professor Song Zhanwei, Professor Xu, Professor Zeng Haiquan, Professor Luo Yuegang, Professor He _, Professor Sha Yundong, Professor Ai Yanting, Professor Yan, etc.
Youth representatives: Professor Li Hongguang, Professor Bill Xiong and Professor Han Qingkai.
Honor recognition
199 1 was elected as an academician of China Academy of Sciences.
social service
Member of China Committee of IFToMM (International Federation of Machine Theory and Machinery), member of International Rotor Dynamics Technical Committee, member of Steering Committee of Asia-Pacific Vibration Conference, honorary chairman of China Vibration Engineering Society, chairman of China Vibration Engineering Society and editor-in-chief of Journal of Vibration Engineering, director of academic committees of State Key Laboratories of Vibration, Shock and Noise such as Shanghai Jiaotong University, Fudan University, Zhejiang University, Jilin University, Tongji University, China Ocean University and Southwest Jiaotong University.
Member of the second, third and fourth sessions of the mechanical engineering discipline evaluation group of the State Council Academic Degrees Committee, 1983, 1988, 1993. He was elected as a member of the Sixth, Seventh and Eighth Chinese People's Political Consultative Conference for three consecutive sessions and honorary chairman of Wenling Association for Science and Technology.
Personality assessment
Mr. Wang (Wen Bangchun) is meticulous in his research work. I remember my first academic paper, which he revised many times. The opinions attached in the paper even exceeded my paper in words, and even the punctuation marks in the paper were corrected one by one. Today, I often follow Mr. Wen's example and revise my papers word for word for my students. Thanks to Yu Xiansheng's example, I embarked on the research road of vibration analysis and control. For more than ten years, my tutor's indifferent, earnest and meticulous spirit has always inspired me. (Comment by Professor Li Hongguang of Shanghai Jiaotong University)
He (referring to Wen Bangchun) not only devoted himself to the cause of science and technology, but also constantly cultivated outstanding scientific and technological workers from generation to generation for the cause of science and technology. It can be said that he is a famous scholar worthy of admiration in the field of science. It is precisely because of a group of pioneers like him who have worked hard for the cause of the motherland that China ranks among the top in the world, and it is precisely because of these gardeners who have worked hard to water flowers that China's science and technology have developed rapidly. (Review of Science and Technology Abstracts)