Energy-shaping control of a muscular octopus arm moving in three dimensions

HS Chang, U Halder, CH Shih… - … of the Royal …, 2023 - royalsocietypublishing.org
Flexible octopus arms exhibit an exceptional ability to coordinate large numbers of degrees
of freedom and perform complex manipulation tasks. As a consequence, these systems …

Reduced order modeling of hybrid soft-rigid robots using global, local, and state-dependent strain parameterization

AT Mathew, D Feliu-Talegon… - … Journal of Robotics …, 2024 - journals.sagepub.com
The need for fast and accurate analysis of soft robots calls for reduced order models (ROM).
Among these, the relative reduction of strain-based ROMs follows the discretization of the …

Neural Models and Algorithms for Sensorimotor Control of an Octopus Arm

T Wang, U Halder, E Gribkova, R Gillette… - arXiv preprint arXiv …, 2024 - arxiv.org
In this article, a biophysically realistic model of a soft octopus arm with internal musculature
is presented. The modeling is motivated by experimental observations of sensorimotor …

A sensory feedback control law for octopus arm movements

T Wang, U Halder, E Gribkova, R Gillette… - 2022 IEEE 61st …, 2022 - ieeexplore.ieee.org
The main contribution of this paper is a novel sensory feedback control law for an octopus
arm. The control law is inspired by, and helps integrate, several observations made by …

Passive elasticity properties of Octopus rubescens arms

U Halder, ED Gribkova, R Gillette… - Journal of …, 2024 - journals.biologists.com
In this report, passive elasticity properties of Octopus rubescens arm tissue are investigated
using a multidisciplinary approach encompassing biomechanical experiments …

A physics-informed, vision-based method to reconstruct all deformation modes in slender bodies

SH Kim, HS Chang, CH Shih… - … on Robotics and …, 2022 - ieeexplore.ieee.org
This paper is concerned with the problem of estimating (interpolating and smoothing) the
shape (pose and the six modes of deformation) of a slender flexible body from multiple …

A Neural Network-based Framework for Fast and Smooth Posture Reconstruction of a Soft Continuum Arm

T Wang, HS Chang, SH Kim, J Guo, U Akcal… - arXiv preprint arXiv …, 2024 - arxiv.org
A neural network-based framework is developed and experimentally demonstrated for the
problem of estimating the shape of a soft continuum arm (SCA) from noisy measurements of …

Unified Inverse Dynamics of Modular Serial Mechanical Systems with Application to Soft Robotics

P Pustina, C Della Santina, A De Luca - arXiv preprint arXiv:2402.07037, 2024 - arxiv.org
The robotic field has been witnessing a progressive departure from classic robotic systems
composed of serial/stiff links interconnected by simple rigid joints. Novel robotic concepts …

Exploiting Frictional Effects to Reproduce Octopus-Like Reaching Movements with a Cable-Driven Spiral Robot

Z Wang, NM Freris - 2024 IEEE 7th International Conference on …, 2024 - ieeexplore.ieee.org
Octopus arms possess a remarkable capacity for intricate and diverse motions achieved
through sequential deformation of the body. This paper aims to reproduce octopus-like …

Novel Hopping Mechanism for an Asteroid Soft Explorer Inspired by Octopuses

R Feng, J Li, H Baoyin - 2022 IEEE International Conference on …, 2022 - ieeexplore.ieee.org
Surface exploration on asteroids urges versatile motion strategies for their extreme
microgravity and rugged environment. This paper presents a novel motion mechanism of a …