Research

Structural dynamics are rarely determined by the structure alone. We also need to consider the interaction with the surrounding fluid, such as a high-rise building swaying in strong wind. Therefore, in our laboratory, we also study a unified simulation method for structure and fluid dynamics suitable for massively parallel computers such as the supercomputer Fugaku.

The computational performance has been increasing exponentially. For example, the iPhone 13 released in 2021 has almost the same computational performance as the US supercomputer Intel ASCI RED, the fastest supercomputer in the world in 1997. In other words, the present supercomputer is a future personal computer. Thus research on numerical methods suitable for supercomputers is indispensable for digital innovation.

3D printing or additive manufacturing has been causing technological innovation in recent years. Topology optimization is suitable for additive manufacturing, so novel manufacturing can be overcome by integrating topology optimization and additive manufacturing.

Innovative Manufacturing with Mathematical Structural Design

Our  laboratory studies “mathematical structural design” to find the optimal structural by numerical simulation based on computational mechanics, optimization mathematics, and supercomputing.

Laboratory of Computational Mechanics and Optimal Design,
Department of Civil and Environmental Engineering, Nagoya University

Computational Mechanics・Optimal Design Laboratory

A.Multi-scale topology optimization
B.Multi-scale topology optimization (material design)
C.Topology optimization for porous structures assuming Additive Manufacturing
D.Robust topology optimization considering uncertainty
E.Topology optimization for controlling dynamic structural behavior
F.Development of three dimension robust optimal design method for uncertain loadangle conditions based on finite deformation theory
G.Optimization for 3D-printing FRP
H.Massively parallel simulation of shock absorption structure using Eulerian fluid-structure interaction analysis method considering interfacial discontinuity
I.The basic study of topology optimization for temperature rise suppression in consideration of unsteady thermal boundary conditions

Strong coupling analysis of viscoelastic structure and air for fracture prevention
【Japan Society for Computational Engineering 27th Computational Engineering Conference Graphics Award Grand Prize/Graphics Award Video Award】

Evaluation of unsteady gas-liquid two-phase flow around buildings and its fluid force during flooding

【Masayoshi Son Foundation】
The near future of digital manufacturing using the supercomputer “Fugaku”

【Nagoya University Festival Academic Lecture】
Aiming for a digital revolution in manufacturing with the supercomputer “Fugaku”

Laboratory information
Computational Mechanics・Optimal Design Laboratory
3rd floor, Building 8 North Wing, Nagoya University,Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan, 〒464-8603
052-789-2737
Prof. Kato: junjikato(at)civil.nagoya-u.ac.jp
Prof. Nishiguchi: kojinishiguchi(at)civil.nagoya-u.ac.jp
Prof. Hoshiba: hiroyahoshiba(at)civil.nagoya-u.ac.jp
Secretary: ssg_sec(at)civil.nagoya-u.jp
​Please replace (at) with @.