Actuation and design innovations in earthworm-inspired soft robots: A review

J Liu, P Li, S Zuo - Frontiers in Bioengineering and Biotechnology, 2023 - frontiersin.org
Currently, soft robotics technologies are creating the means of robotic abilities and are
required for the development of biomimetic robotics. In recent years, earthworm-inspired soft …

An earthworm-like modular soft robot for locomotion in multi-terrain environments

R Das, SPM Babu, F Visentin, S Palagi, B Mazzolai - Scientific Reports, 2023 - nature.com
Robotic locomotion in subterranean environments is still unsolved, and it requires innovative
designs and strategies to overcome the challenges of burrowing and moving in unstructured …

Electrostatic footpads enable agile insect-scale soft robots with trajectory control

J Liang, Y Wu, JK Yim, H Chen, Z Miao, H Liu, Y Liu… - Science Robotics, 2021 - science.org
Agility and trajectory control are two desirable features for robotics, but they become very
challenging for soft robots without rigid structures to support rapid manipulations. Here, a …

Soft robot actuation strategies for locomotion in granular substrates

D Ortiz, N Gravish, MT Tolley - IEEE Robotics and Automation …, 2019 - ieeexplore.ieee.org
Soft-bodied organisms such as annelids may exploit body compliance using their
hydrostatic skeletons and muscles to burrow in granular substrates. In this letter, we …

An analysis of peristaltic locomotion for maximizing velocity or minimizing cost of transport of earthworm-like robots

A Kandhari, Y Wang, HJ Chiel, RD Quinn… - Soft robotics, 2021 - liebertpub.com
Earthworm-like peristaltic locomotion has been implemented in> 50 robots, with many
potential applications in otherwise inaccessible terrain. Design guidelines for peristaltic …

Kirigami skin improves soft earthworm robot anchoring and locomotion under cohesive soil

B Liu, Y Ozkan-Aydin, DI Goldman… - 2019 2nd IEEE …, 2019 - ieeexplore.ieee.org
Earthworms can move beneath soil by expanding parts of their bodies radially; bristles
called setae work as anchors during surface locomotion but their efficacy during subsurface …

Lateral bending and buckling aids biological and robotic earthworm anchoring and locomotion

Y Ozkan-Aydin, B Liu, AC Ferrero… - Bioinspiration & …, 2021 - iopscience.iop.org
Earthworms (Lumbricus terrestris) are characterized by soft, highly flexible and extensible
bodies, and are capable of locomoting in most terrestrial environments. Previous studies of …

Multimodal steerable earthworm-inspired soft robot based on vacuum and positive pressure powered pneumatic actuators

P Li, B Chen, J Liu - Bioinspiration & Biomimetics, 2023 - iopscience.iop.org
This article presents a multimodal steerable earthworm-inspired soft robot based on vacuum
and positive pressure powered pneumatic actuators capable of crawling both inside …

Turning in worm-like robots: the geometry of slip elimination suggests nonperiodic waves

A Kandhari, Y Wang, HJ Chiel, KA Daltorio - Soft robotics, 2019 - liebertpub.com
Inspired by earthworms, soft robots have demonstrated locomotion using segments with
coupled length-wise elongation and radial contraction. However, peristaltic turning has …

A data-driven approach to geometric modeling of systems with low-bandwidth actuator dynamics

S Deng, J Liu, B Datta, A Pantula… - … on Robotics and …, 2024 - ieeexplore.ieee.org
It is challenging to perform system identification on soft robots due to their underactuated,
high-dimensional dynamics. In this work, we present a data-driven modeling framework …