Name: Wijerathne, Maddeged,
Position:Associate Professor
Division/Center: Center for Prediction Research of tsunami
Research Area: Computational mechanics, Multi agent simulations
URL: http://www.eri.u-tokyo.ac.jp/sensing_and_simulation/information/lalith.htm

Last Update 05/16 2014

Research:

The advancement of computer hardware has made it possible to make large scale simulations of earthquake disasters and human actions, in high spatial and temporal resolutions. We utilize high performance computational resources to simulate the time critical mass evacuations like those triggered by a tsunami, and the recovery process of lifeline networks after a major earthquake. Due to various limitations, the existing methods either use simple models or empirical relations. We are developing fine detailed models, to overcome these limitations. Also, we seek to improve PDS-FEM, which a numerical technique for 3D crack propagation simulations, and apply to explore various crack propagation phenomena.

Publications:

Lalith Wijerathne, Leoneland, A. Melgar, and Muneo Hori, On Usefulness and Reliability of MAS for Mass Evacuation Analysis, Journal of Earthquake Engineering (JSCE), submitted, .

M. Hori, M.L.L. Wijerathne, T. Ichimuta and S. Tanaka, On multi agent simulation for estimation of human action agaist earth-quake disasters, Journal of Earthquake and Tsunami, submitted, .

Maddegedara Lalith, Hori Muneo, Ichimura Tsuyoshi, Parallel scalability enhancements of seismic response and evacuation simulation of IES, Lecture Notes on Computer Science, submitted, .

Rithika Dulam, Maddegedara Lalith, Muneo Hori, Tsuyoshi Ichimura and Seizo Tanaka, Development of HPC enhanced multi agent code for tsunami evacuation, Journal of Applied Mechanics (JSCE), 15, , 2012.

Maddegedara Lalith, Leoneland, A. Melgar, and Muneo Hori, HPC enhanced large urban area evacuation simulations with autonomously navigating multi agents, Proceedings of the internatinoal conference on Computational science, submitted, .

Maddegedara Lalith, Leoneland, A. Melgar, and Muneo Hori, On the enhancements of agents°« navigation skills of a multi agent systems based mass evacuation analysis, Proceedings of the 10th International Conference on Urban Earthquake Engineering, submitted, .

Maddegedara Lalith, Hori Muneo, Ichimura Tsuyoshi, Parallel scalability enhancements of seismic response and evacuation simula-tion of IES, Proceedings of the 10th international meeting on high performance computing for computational science , , 2012.

Rithika Dulam, Maddegedara Lalith, Muneo Hori, Tsuyoshi Ichimura and Seizo Tanaka, A study on effectiveness of using officials for reducing pre-evacuation time in a large area, based on multi agent simulations, Proceedings of the International Symposium on Engineering Lessons Learned from the Giant Earthquake, , 2012.

M. L. L. Wijerathne, M. Hori, H. Sakaguchi and T Ichimura, Simulation of 3D Wing Crack Growth with PDS-FEM, Proceedings of the 4th International Conference on Computational Methods, , 2012.

Lalith Wijerathne, Leoneland, A. Melgar, and Muneo Hori, On Usefulness and Reliability of MAS for Mass Evacuation Analysis, Proceedings of the JSCE Earthquake Engineering Conference, , 2012.

Wijerathne Lalith, Muneo Hori, Development of Multi Agent Simulation Using High Performance Computing and Introducing Official Agents, Proceedings of the Annual Meeting of Japan Association for Earthquake Engineering, , 2012.

M.L.L. Wijerathne, Muneo Hori and Hide Sakaguchi, Simulation of 3D wing crack growth in uniaxial compression, with PDS-FEM, 10th World Congress on Computational Mechanics, Brazil, July, , 2012.