NeuralSim: Augmenting differentiable simulators with neural networks

E Heiden, D Millard, E Coumans… - … on Robotics and …, 2021 - ieeexplore.ieee.org
Differentiable simulators provide an avenue for closing the sim-to-real gap by enabling the
use of efficient, gradient-based optimization algorithms to find the simulation parameters that …

Recent progress in legged robots locomotion control

J Carpentier, PB Wieber - Current Robotics Reports, 2021 - Springer
Purpose of review In recent years, legged robots locomotion has been transitioning from
mostly flat ground in controlled settings to generic indoor and outdoor environments …

Whole-body nonlinear model predictive control through contacts for quadrupeds

M Neunert, M Stäuble, M Giftthaler… - IEEE Robotics and …, 2018 - ieeexplore.ieee.org
In this letter, we present a whole-body nonlinear model predictive control approach for rigid
body systems subject to contacts. We use a full-dynamic system model which also includes …

Disect: A differentiable simulation engine for autonomous robotic cutting

E Heiden, M Macklin, Y Narang, D Fox, A Garg… - arxiv preprint arxiv …, 2021 - arxiv.org
Robotic cutting of soft materials is critical for applications such as food processing,
household automation, and surgical manipulation. As in other areas of robotics, simulators …

[PDF][PDF] Analytical derivatives of rigid body dynamics algorithms

J Carpentier, N Mansard - Robotics: Science and …, 2018 - m.roboticsproceedings.org
Rigid body dynamics is a well-established frame--work in robotics. It can be used to expose
the analytic form of kinematic and dynamic functions of the robot model. So far, two major …

Diffaqua: A differentiable computational design pipeline for soft underwater swimmers with shape interpolation

P Ma, T Du, JZ Zhang, K Wu, A Spielberg… - ACM Transactions on …, 2021 - dl.acm.org
The computational design of soft underwater swimmers is challenging because of the high
degrees of freedom in soft-body modeling. In this paper, we present a differentiable pipeline …

Agile maneuvers in legged robots: a predictive control approach

C Mastalli, W Merkt, G **n, J Shim, M Mistry… - arxiv preprint arxiv …, 2022 - arxiv.org
Planning and execution of agile locomotion maneuvers have been a longstanding
challenge in legged robotics. It requires to derive motion plans and local feedback policies …

Mpc-based controller with terrain insight for dynamic legged locomotion

O Villarreal, V Barasuol, PM Wensing… - … on Robotics and …, 2020 - ieeexplore.ieee.org
We present a novel control strategy for dynamic legged locomotion in complex scenarios
that considers information about the morphology of the terrain in contexts when only on …

Whole-body mpc for a dynamically stable mobile manipulator

MV Minniti, F Farshidian, R Grandia… - IEEE Robotics and …, 2019 - ieeexplore.ieee.org
Autonomous mobile manipulation offers a dual advantage of mobility provided by a mobile
platform and dexterity afforded by the manipulator. In this letter, we present a whole-body …

Algorithmic differentiation improves the computational efficiency of OpenSim-based trajectory optimization of human movement

A Falisse, G Serrancolí, CL Dembia, J Gillis… - PLoS …, 2019 - journals.plos.org
Algorithmic differentiation (AD) is an alternative to finite differences (FD) for evaluating
function derivatives. The primary aim of this study was to demonstrate the computational …