Differentiable physics simulation of dynamics-augmented neural objects

S Le Cleac'h, HX Yu, M Guo, T Howell… - IEEE Robotics and …, 2023 - ieeexplore.ieee.org
We present a differentiable pipeline for simulating the motion of objects that represent their
geometry as a continuous density field parameterized as a deep network. This includes …

Bundled gradients through contact via randomized smoothing

HJT Suh, T Pang, R Tedrake - IEEE Robotics and Automation …, 2022 - ieeexplore.ieee.org
The empirical success of derivative-free methods in reinforcement learning for planning
through contact seems at odds with the perceived fragility of classical gradient-based …

Inverse dynamics trajectory optimization for contact-implicit model predictive control

V Kurtz, A Castro, AÖ Önol, H Lin - arXiv preprint arXiv:2309.01813, 2023 - arxiv.org
Robots must make and break contact with the environment to perform useful tasks, but
planning and control through contact remains a formidable challenge. In this work, we …

Dojo: A differentiable physics engine for robotics

TA Howell, SL Cleac'h, J Brüdigam, JZ Kolter… - arXiv preprint arXiv …, 2022 - arxiv.org
We present Dojo, a differentiable physics engine for robotics that prioritizes stable
simulation, accurate contact physics, and differentiability with respect to states, actions, and …

An unconstrained convex formulation of compliant contact

AM Castro, FN Permenter, X Han - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this article, we present a convex formulation of compliant frictional contact and a robust
performant method to solve it in practice. By analytically eliminating contact constraints, we …

Real-time deformable-contact-aware model predictive control for force-modulated manipulation

L Wijayarathne, Z Zhou, Y Zhao… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The force modulation of robotic manipulators has been extensively studied for several
decades. However, it is not yet commonly used in safety-critical applications due to a lack of …

Velocity level approximation of pressure field contact patches

J Masterjohn, D Guoy, J Shepherd… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
Pressure Field Contact (PFC) was recently introduced as a method for detailed modeling of
contact interface regions at rates much faster than elasticity-theory models, while at the …

Tacsl: A library for visuotactile sensor simulation and learning

I Akinola, J Xu, J Carius, D Fox, Y Narang - arXiv preprint arXiv …, 2024 - arxiv.org
For both humans and robots, the sense of touch, known as tactile sensing, is critical for
performing contact-rich manipulation tasks. Three key challenges in robotic tactile sensing …

Contact-implicit trajectory optimization with hydroelastic contact and ilqr

V Kurtz, H Lin - 2022 IEEE/RSJ International Conference on …, 2022 - ieeexplore.ieee.org
Contact-implicit trajectory optimization offers an appealing method of automatically
generating complex and contact-rich behaviors for robot manipulation and locomotion. The …

Exploration of Science Concepts in Indonesian Indigenous Culture: Actualization of the Indonesian Curriculum.

N Suprapto, IA Rizki, HV Saphira, Y Alfarizy… - Journal of Turkish …, 2024 - ERIC
Ojhung is one of the indigenous Indonesian cultures from Sumenep Regency which
contains relevant science concepts to be applied in science learning. Therefore, this …