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​D. Robust topology optimization considering uncertainty

In ordinary topology-optimized design, the optimal structure is found by assuming that the set design and boundary conditions do not change. However, actual structures are often subjected to uncertain changes in conditions, and robustness against such changes is required. Therefore, in this research, we are developing a robust topological optimal design method that takes into account the fact that the angle, magnitude, and location of the load, which are boundary conditions, may vary uncertainly. We are also trying to develop a method that can be extended to nonlinear dynamic problems as well as linear problems, while at the same time not increasing the computational cost significantly. If this research is developed, it will be useful for the design of collision problems of automobiles and uncertain vibration problems caused by earthquakes.

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