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Fast Aquatic Swimmer Optimization with Differentiable Projective Dynamics and Neural Network Hydrodynamic Models. (arXiv:2204.12584v2 [cs.RO] UPDATED)
June 23, 2022, 1:11 a.m. | Elvis Nava, John Z. Zhang, Mike Y. Michelis, Tao Du, Pingchuan Ma, Benjamin F. Grewe, Wojciech Matusik, Robert K. Katzschmann
cs.LG updates on arXiv.org arxiv.org
Aquatic locomotion is a classic fluid-structure interaction (FSI) problem of
interest to biologists and engineers. Solving the fully coupled FSI equations
for incompressible Navier-Stokes and finite elasticity is computationally
expensive. Optimizing robotic swimmer design within such a system generally
involves cumbersome, gradient-free procedures on top of the already costly
simulation. To address this challenge we present a novel, fully differentiable
hybrid approach to FSI that combines a 2D direct numerical simulation for the
deformable solid structure of the swimmer and …
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