Neuphysics: Editable neural geometry and physics from monocular videos

YL Qiao, A Gao, M Lin - Advances in Neural Information …, 2022 - proceedings.neurips.cc
We present a method for learning 3D geometry and physics parameters of a dynamic scene
from only a monocular RGB video input. To decouple the learning of underlying scene …

Differentiable simulation of soft multi-body systems

Y Qiao, J Liang, V Koltun, M Lin - Advances in Neural …, 2021 - proceedings.neurips.cc
We present a method for differentiable simulation of soft articulated bodies. Our work
enables the integration of differentiable physical dynamics into gradient-based pipelines …

Understanding physical effects for effective tool-use

Z Zhang, Z Jiao, W Wang, Y Zhu… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
We present a robot learning and planning framework that produces an effective tool-use
strategy with the least joint efforts, capable of handling objects different from training …

Model reduction for the material point method via an implicit neural representation of the deformation map

PY Chen, MM Chiaramonte, E Grinspun… - Journal of Computational …, 2023 - Elsevier
This work proposes a model-reduction approach for the material point method on nonlinear
manifolds. Our technique approximates the kinematics by approximating the deformation …

Hopping potential wells and gait switching in a fish-like robot with a bistable tail

P Chivkula, C Rodwell, P Tallapragada - Extreme Mechanics Letters, 2024 - Elsevier
Fish outperform current underwater robots in speed, agility, and efficiency of locomotion, in
part due to their flexible appendages that are capable of rich combinations of modes of …

Bistable Aerial Transformer: A Quadrotor Fixed-Wing Hybrid That Morphs Dynamically Via Passive Soft Mechanism

J Weakly, X Li, T Agarwal, M Li… - Journal of …, 2024 - asmedigitalcollection.asme.org
Aerial vehicle missions require navigating trade-offs during design, such as the range,
speed, maneuverability, and size. Multi-modal aerial vehicles enable this trade-off to be …

Bi-Stability in Flexure Beams: Introducing a Setup for Experimental Characterization

A Diaz-de-Leon, E Cuan-Urquizo, A Roman-Flores… - Applied Sciences, 2022 - mdpi.com
Bi-stable mechanisms can remain in two positions without a power input or locking system.
These mechanisms can achieve large displacements with low energy, requiring power only …

Topology optimization with frictional self-contact

Z Zong, X Li, J Ye, S Wen, Y Yang, DM Kaufman… - arXiv preprint arXiv …, 2022 - arxiv.org
Contact-aware topology optimization faces challenges in robustness, accuracy, and
applicability to internal structural surfaces under self-contact. This work builds on the …

[PDF][PDF] Model reduction for the material point method via learning the deformation map and its spatial-temporal gradients

PY Chen, M Chiaramonte, E Grinspun… - URL: http://arxiv. org …, 2021 - peterchencyc.com
This work proposes a model-reduction approach for the material point method on nonlinear
manifolds. The technique approximates the kinematics by approximating the deformation …

Drag Coefficient Characterization of the Origami Magic Ball

G Chen, D Chen, J Weakly… - … and Information in …, 2023 - asmedigitalcollection.asme.org
The drag coefficient plays a vital role in the design and optimization of robots that move
through fluids. From aircraft to underwater vehicles, their geometries are specially …