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| Simulating for the Whole Society Organized by the Human, Artifacts and the Natural |
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Shinobu Yoshimura, Prof., Dept. of Quantum Engineering and System Science , School of Engineering (with Dept. of Human Environment Studies, Graduate School of Frontier Sciences) Computational mechanics and intellectual data processing for predicting structural deformation and fluid, thermo, electromagnetic fields; Intelligent simulation combined with high-performance computer; Virtual demonstration testing and virtual social experiment; These are my study themes. My computer simulation treats gigantic or artificial structures that are not appropriate for real experimental verification, and phenomena associated with human actions or senses as well. So far I have been engaged in simulation and numerical analysis works on damages caused by earthquakes upon historical structures like Pantheon of Rome and nuclear reactors; I also have been simulating the process of cracks resulted from damages on natural gas pipe-lines; and modeling of environmental pollution as well. We went to the final nomination of IEEE/ACM Gordon Bell Award, awarded on projects for application of parallel computing for the study on how mobile phones hit the ground. It was a collaboration work with a industrial companies. Presently I am doing simulation for the case that the rails of LRT (Light Rail Transit) in Okayama City are extended. It is such a problem concerning to NPOs, city government, police or other stake-holders. I have never seen such big-scaled simulation used for social consensus in other than ours. If it is successful, I hope the experiences can be applied to other LRT system that some local governments are thinking about. The essence of computational mechanics is "approximation". We give big effort to predict the truth by appropriate parameters and newly proposed equations. However, I think I would not want to depend too much on "approximation", but I will simulate it by many elements computed thoroughly . For that purpose, I make degrees of freedom for mesh in FEM, to 0.2 billion though formally it was tens of thousand or hundreds of thousands. Then it comes for analysis with need of fast computers like an earth simulator. My research group has released free simulation software "ADVENTURE system" and its commercial version as well, which was developed mainly by my project in "Development of Computational Mechanics System for Large Scale Analysis and Design " sponsored by Japan Society for Promotion of Science. I want many people to use it. For such purpose, we have been developing the codes for a decade. |
I majored in safety of nuclear reactor in my university because I experienced the" oil shock" in my childhood and came interested in energy to study something beneficial to the world. At first I was engaged in the both of computation and experiment, and I found those results unconfirmed. Also I found out that the accidents are also affected by actions of persons, so eventually I started to think the necessity of combined/coupled simulation in the designing stage. That is when I came to the concept of the intellectual simulation. While staying in Germany, 1994, I was impressed to know that the recycling process is taken into account in the designing stage of artifacts. Considering relations between environmental issues and artifacts, I found the world was essentially made of combinations of human beings, artifacts and nature, and I became convinced that I could serve as solving some of social problems by modeling the combination including their interactions. At home, I share house work with my wife. I have new ideas coming while doing it, maybe because I had the memory of discussions at classes. I well think about the relation of the growth of my children to intellectual data processing. Life is the treasure box of vital matters. Usually I try to see things from sense or feeling rather than from expertise. I am imagine how I would do it even someone else had formed studies or modeling. I always think there is not only one study or method, and I get back to actual matters to solve. These days I have been giving some time on simulating flapping of insects. It requires coupled method, which involves lots of factors. It is also referred to a grand challenge of simulation, however, I want to develop it to modeling that could be applied to trials of small-sized flying robots that would be working in the disaster area and also be working as environmental monitoring. |
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Earthquake proof simulation in the case of Pantheon of Rome  The sample of the simulation how a great earthquake damages the Pantheon of Rome, computed by the world fastest parallel computer. The simulation provides indication of points where to be fixed or reinforced. |
<Personal Background>1983: Graduated from Master Course of Dep. of Nuclear Engineering, Graduate School of Engineering, Univ. of Tokyo. (Master of Engineering). 1985: Visiting Prof. of Computational Mechanical Center of US Georgia Tech. Univ. 1987: Graduated from Doctoral Course. (Dr. of Engineering) Lecturer, Assistant Prof. of Univ. of Tokyo. 1992: Assistant Prof. of Research into Artifacts, Center of Engineering. 1994: Visiting Researcher of Material Testing Institute of Stuttgart Univ. (Germany). 95: Assistant Prof. of Graduate School of Engineering, Univ. of Tokyo. 1999: Prof. of Institute of Environmental Studies of Graduate School of Frontier Sciences and Dep. of Quantum Engineering and Systems Science of Graduate School of Engineering, Univ. of Tokyo(additional). Specialty in computational mechanics and intelligent simulation. |
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