no code implementations • 24 Apr 2023 • Harsh Vardhan, David Hyde, Umesh Timalsina, Peter Volgyesi, Janos Sztipanovits
In this work, we leverage recent advances in optimization and artificial intelligence (AI) to explore both of these potential approaches, in the context of designing an optimal unmanned underwater vehicle (UUV) hull.
no code implementations • 28 Feb 2023 • Harsh Vardhan, Peter Volgyesi, Janos Sztipanovits
In this work, we propose an alternative way to use ML model to surrogate the design process that formulates the search problem as an inverse problem and can save time by finding the optimal design or at least a good initial seed design for optimization.
1 code implementation • 28 Feb 2023 • Harsh Vardhan, Peter Volgyesi, Will Hedgecock, Janos Sztipanovits
Second, it needs integration of a sample efficient optimization framework with the integrated toolchain.
no code implementations • 18 Feb 2023 • Harsh Vardhan, Janos Sztipanovits
However, a design that is optimal at high velocity and high turbulence conditions performs near-optimal across many considered velocity and turbulence conditions.
1 code implementation • 16 Nov 2022 • Harsh Vardhan, Umesh Timalsina, Peter Volgyesi, Janos Sztipanovits
In a computer-aided engineering design optimization problem that involves notoriously complex and time-consuming simulator, the prevalent approach is to replace these simulations with a data-driven surrogate that approximates the simulator's behavior at a much cheaper cost.
1 code implementation • 24 Jun 2022 • Harsh Vardhan, Janos Sztipanovits
However, the main challenge in creating a DL-based surrogate is to simulate/label a large number of design points, which is time-consuming for computationally costly and/or high-dimensional engineering problems.
no code implementations • 18 Jun 2022 • Harsh Vardhan, Janos Sztipanovits
In this paper, we introduce a novel approach for this detection process using a Reduced Robust Random Cut Forest (RRRCF) data structure, which can be used on both small and large data sets.
1 code implementation • 11 Jun 2022 • Harsh Vardhan, Janos Sztipanovits
Finding a good test case that can reveal the potential failure in these trained systems can help to retrain these models to increase their correctness.
no code implementations • 6 Jun 2022 • Harsh Vardhan, Janos Sztipanovits
Once the surrogate is trained for a class of problem, then the learned response surface can be used to analyze the stress effect without running the FEA for that class of problem.