Plenary Presentation


Thermal conduction anisotropy of magnetic functional fluids utilizing cluster formation of dispersed fine particles

Prof. Yasushi IDO

Nagoya Institute of Technology, Japan

Abstract: to be uploaded...

Biography: Professor Ido received Ph.D. in Mechanical Engineering from Keio University in 1991 and worked as Research Associate, Hokkaido University since then. In 1996, he became an Associate Professor at Nagoya Institute of Technology and was promoted to Professor in 2009. Professor Ido served as Vice President of Nagoya Institute of Technology since 2014, President of the Japan Society of Magnetic Fluid Research since 2015, and President of the Japan Society of Applied Electromagnetics and Mechanics since 2018. He became the Academician of the Euro Mediterranean Academy of Arts and Sciences in 2019. His main research fields include Fluid Engineering, Vibration Control, Functional fluids and Functional Materials and Applied Electromagnetics and Mechanics.

Researches on Electromagnetic Behaviors Influenced by Deformation of Superconductors with Multi-Fields Coupling

Prof. Youhe ZHOU

Lanzhou University, China

Abstract: Since the superconducting materials have high current-carrying ability, much more applications of superconducting magnets with high capacity of magnetic fields have been planned to be conducted in the advanced equipment such as ITER fusion reactor, advanced photon source, spallation neutron source, particle source generator, and vehicle train etc.. Accompanying with that the concept strong magnetic field increases as high as possible in the developing technology of superconducting magnets, one of the most difficult problems what we have faced is to know the deformation influence existing in the designing and operating processes of superconducting magnets when they are undergone by the environments of both strongly electromagnetic forces and ultra-low temperature. Due to that a concept design of magnetic fields in such situation is strongly dependent on the globe deformed configuration of the superconducting magnets, and the superconducting properties of critical current density, critical temperature, and critical magnetic field all are known to be degraded by local strain of the materials, thus, the investigation for the design of superconducting magnets inherently constitutes an inverse problem in mathematics relative to mechanical deformation. In other words, it is severely emerged how to determine the configuration of a superconducting magnet designed and/or fabricated at the room temperature such that the concept electromagnetic behaviors can be achieved by the deformed magnet when it works in the operating environments. This presentation introduces the investigation developments of this issue conducted by the nonlinear electro-magneto-thermal-mechanical fields coupling methodology what we employed, containing the theoretical modelling, the measurement techniques using strain and/or stress, and the first experimental device developed with fully electric, magnetic, low temperature, and mechanical environments. From that, one sees that the deformation should be considered by the multi-fields coupling in the design of superconducting magnets when the magnetic field strength is over 3.5T.

Biography: Youhe Zhou received his bachelor and master degrees from Huazhong University of Science and Technology in 1982 and 1984, respectively, and Ph.D. degree from Lanzhou University in 1989. Since 1996, he has severed as a full professor in the Department of Mechanics and Engineering Science of Lanzhou University. In 1999, he was appointed to a professor of the Cheung Kong Scholars by the Ministry of Education of China. He serves as Dean of the College of Civil Engineering and Mechanics of Lanzhou University during 2005-2017, a standing member of the Council of the Chinese Society of Theoretical and Applied Mechanics since 2010, an associate Editor-in-Chief of the academic journals of Theoretical & Applied Mechanics Letters and Acta Mechanica Solida Sinica (Chinese Edition) since 2015, and served as Head of the Key Laboratory of Mechanics for Disaster and Environment in Western China of the Ministry of Education of China (Lanzhou University) during 2006–2016. His research interests are mainly concentrated in areas of nonlinear solid mechanics, electro–magneto-solid mechanics, mechanics of smart structures and dynamic controls, mechanics of superconductor and superconducting magnets, mechanics of wind-blown sand movements, containing their theoretical modeling, quantitatively nonlinear analysis methods, and experiments. Till today, he has published over 300 peer-reviewed SCI journal papers, one academic book, and one textbook. His research contributions were awarded two National Natural Science Prizes (second grade) and one National Scientific and Technology Development Prize (second grade) by the Chinese Central Government. His two serial academic papers published in IEEE Transactions on Applied Superconductivity in 2007 received the Van Duzer Prize awarded by the IEEE Superconducting Council in 2008. He holds the honors including the Well-Known Teacher of Higher-Education awarded by the Ministry of Education of China in 2008, the Outstanding Contributor for the Innovation of Western China awarded by the Chinese Association of Science and Technology in 2006, and the Outstanding Young Scientist awarded by the Natural Science Foundation of China in 2000, etc. His teaching contributions were awarded one prize of the National Teaching Achievement Prize (second grade) by the Ministry of Education of China in 2009, and two Ph.D. dissertations supervised by him had won one National Outstanding Ph.D. Dissertations of China in 2010 and one its nomination in 2012, respectively; and his supervised other one Ph.D. dissertation had won the Outstanding Ph.D Dissertation awarded by the Chinese Society of Theoretical and Applied Mechanics in 2017.

Artificial Intelligence in Electromagnetic Methods of Non-Destructive Testing

Prof. Tomasz CHADY

West Pomeranian University of Technology, Poland

Abstract: The reliable detection and classification of defects is one of the most important tasks in nondestructive testing (NDT). Usually, trained interpreters evaluate the achieved results of inspection. In many cases the process is laborious and time-consuming. Human interpretation can be subjective, inconsistent, and often biased. The additional problems are caused by the insufficient quality of utilized signals or images. An incorrect classification may result in rejection of a part in good conditions or acceptance of a part with defects exceeding the limit defined by the relevant standards. Therefore, artificial intelligence algorithms were introduced in the systems of nondestructive evaluation. The works on methods of defects identification in case of the eddy current method are presented. Among the other solutions, a flaw profile estimation can be achieved by using a dynamic artificial neural networks (ANN). Various aspects of flaw profile identification using the forward and inverse neural models were analyzed and presented. Applying the artificial neural networks for solution of an inverse problem is fast and effective, but its efficiency depends on quality of training signals and size of a training database. Identification reliability may be improved by using dedicated transducers and Multi-Frequency Excitation and Spectrogram Method (MFES). Application of other methods of artificial intelligence like a rough sets approach in the process of flaws detection and identification will be also presented.

Biography: Tomasz Chady D.Sc., Ph.D. is Professor of West Pomeranian University of Technology in Faculty of Electrical Engineering. He is also president of the Polish Society for Non-destructive Testing and Technical Diagnostics SIMP (PTBNiDT SIMP). He received the Ph.D. in electrical engineering from the Technical University of Szczecin, Poland, in 1996. In 1987 he joined the Chair of Theoretical Electrotechnics and Computer Science, Technical University of Szczecin. From 1997 to 1999 he was an Assistant Professor in Oita University, Japan. In 1999 he joined Oita Industrial Research, Japan under the STA fellowship. From 2001 to the present he has been with the Department of Theoretical Electrotechnics and Computer Science, West Pomeranian University of Technology. For decades, he has been engaged in the theory, teaching and experimental studies of the theoretical electrotechnics, electromagnetic nondestructive testing (including eddy current testing, magnetic methods, terahertz and radiographic inspection), automatic defect recognition and artificial intelligence. He has been leading several Polish and European scientific projects in nondestructive testing. He is the author or co-author of more than 200 scientific publications. He is a Fellow of the Japan Society of Applied Electromagnetics and Mechanics (JSAEM), Polish Society for Non-Destructive Testing and Technical Diagnostics (PTBNiDT), Institute of Electrical and Electronics Engineers IEEE, Polish Society of Theoretical and Applied Electrotechnics (PTETiS), and the Society of Mechanical Engineers and Technicians (SIMP).

 

 

Keynote Presentation


Some Theoretical and Technical Advances in Electromagnetic NDT&E Technologies

Prof. Zhenmao CHEN

Xi’an Jiaotong University, China

Abstract: Some recent progresses in the theory and applications of advanced electromagnetic Non-Destructive Testing and Evaluation (NDT&E) technologies are briefly introduced in this presentation. In view of the NDE of structures such as pipe and pressure vessel of nuclear power plants, fusion reactors, and NDE of new structures and materials such as the super-light porous material, recent developments on techniques for detection and sizing of macro defects, quantitative valuation of residual stress and material degradation with NDT&E method such as the advanced eddy current testing, natural magnetization method, electromagnetic acoustic transducer, integrated magnetic NDE, laser UT and laser spot infrared thermograph techniques are introduced. The design and optimization of advanced probe, high efficient numerical simulation method, quantitative damage evaluation techniques, principle of new NDT&E methods, and the NDE of new material and new structures are also introduced respectively. The presentation is mainly related to the research work and results of the NDE group of Xi’an Jiaotong university and related research groups, in addition with some typical new theoretical and technical advances in the NDT&E technologies of the global NDT society.

Biography: Prof. Zhenmao Chen is now a full professor of Xi’an Jiaotong University in China, Director of Shaanxi Provincial Research Center of NDT and Structural Integrity. He got his Bachelor and Master Degree from Xi’an Jiaotong University, Doctor Degree from the University of Tokyo. He worked as Post-Doctoral Fellow in the JAEA Japan, Associate Professor in the Keio University Japan, and is Guest Professor in Toholu University Japan now. He is ISC member of ENDE, ISEM, ICFD and ICMST conferences, was chairman of 14th ISEM, 19th ENDE and cochairman of 7th ICEF, 3rd ICMST and is an editing committee member of 8 academic journals and a member of national NDT standard committee. Prof. Zhenmao Chen has published over 260 journal papers and over 250 international conference papers. He is holder of over 40 patents, 4 software copyrights etc. He is author/coauthor of 6 technical books. He is awarded 1st class provincial technical award, Miya award, annual best paper award of JSM, JSNDI, JSAEM etc. He was plenary, keynote or invited speakers of over 20 academic conferences.

Nondestructive Micro-magnetic evaluation of mechanical properties and residual stress in ferromagnetic materials: Progress and Challenges

Prof. Cunfu HE

Beijing University of Technology, China

Abstract: Mechanical properties and residual stress evaluation are of importance to the quality control of key parts & components. Traditional methods based on destructive tools are not suitable for rapid on-line testing and limited to small samples but not the component. First. the working principles of the Micro-magnetic evaluation technology are introduced. Secnodly, various special sensors for micro magnetic testing and the instruments are developped. Then, based on nondestructive Micro-magnetic evaluation technology, experimental tests are done and the results are given and analysed. Finally, the challenges in the future are discussed.

Biography: Professor He has been engaged more than 20 years in the research of Mechanical Engineering and Nondestructive Evaluation Technology, including sensor technology, ultrasonic nondestructive testing and experimental solid mechanics. He had presided and accomplished 12 projects from National Natural Science Foundation. He has done systematic research in measurements of mechanical components with acoustics, laser ultrasonics, ultrasonic guided waves nondestructive testing. And nondestructive Micro-magnetic evaluation of mechanical properties are focused on. More than 300 academic papers have been published, among which more than 200 have been indexed by SCI and EI. He have owned more than 100 patents.