Tunable stiffness in fish robotics: mechanisms and advantages

D Quinn, G Lauder - Bioinspiration & Biomimetics, 2021 - iopscience.iop.org
One of the emerging themes of fish-inspired robotics is flexibility. Adding flexibility to the
body, joints, or fins of fish-inspired robots can significantly improve thrust and/or efficiency …

Tunable stiffness enables fast and efficient swimming in fish-like robots

Q Zhong, J Zhu, FE Fish, SJ Kerr, AM Downs… - Science Robotics, 2021 - science.org
Fish maintain high swimming efficiencies over a wide range of speeds. A key to this
achievement is their flexibility, yet even flexible robotic fish trail real fish in terms of …

Flexibility is a hidden axis of biomechanical diversity in fishes

YE Jimenez, KN Lucas, JH Long Jr… - Journal of …, 2023 - journals.biologists.com
Nearly all fish have flexible bodies that bend as a result of internal muscular forces and
external fluid forces that are dynamically coupled with the mechanical properties of the body …

Swimming performance of a tensegrity robotic fish

B Chen, H Jiang - Soft robotics, 2019 - liebertpub.com
We described a tensegrity robotic fish and detailed its overall structure, stiffness, and
mechatronics. The main flexible structure of the robotic fish body was composed with a …

Hybrid finite difference/finite element immersed boundary method

BE Griffith, X Luo - … journal for numerical methods in biomedical …, 2017 - Wiley Online Library
The immersed boundary method is an approach to fluid‐structure interaction that uses a
Lagrangian description of the structural deformations, stresses, and forces along with an …

Undulatory swimming performance and body stiffness modulation in a soft robotic fish-inspired physical model

A Jusufi, DM Vogt, RJ Wood, GV Lauder - Soft robotics, 2017 - liebertpub.com
Undulatory motion of the body is the dominant mode of locomotion in fishes, and numerous
studies of body kinematics and muscle activity patterns have provided insights into the …

Body stiffness variation of a tensegrity robotic fish using antagonistic stiffness in a kinematically singular configuration

B Chen, H Jiang - IEEE Transactions on Robotics, 2021 - ieeexplore.ieee.org
Numerous biological studies of body and/or caudal fin fish have powerfully identified that the
fish body's passive properties, such as stiffness and its distribution, contribute to the fish's …

Proprioceptive feedback amplification restores effective locomotion in a neuromechanical model of lampreys with spinal injuries

C Hamlet, L Fauci, JR Morgan… - Proceedings of the …, 2023 - National Acad Sciences
Spinal injuries in many vertebrates can result in partial or complete loss of locomotor ability.
While mammals often experience permanent loss, some nonmammals, such as lampreys …

Effects of body stiffness on propulsion during fish self-propelled swimming

MF Xu, YL Yu - Physics of Fluids, 2023 - pubs.aip.org
Many fish propel themselves using wave-like lateral flexion of their body and tail in the
water. The undulatory body is driven by the distributed muscles, and locomotion is achieved …

Control of movement of underwater swimmers: Animals, simulated animates and swimming robots

SY Gordleeva, IA Kastalskiy, YA Tsybina… - Physics of Life …, 2023 - Elsevier
The control of movement in living organisms represents a fundamental task that the brain
has evolved to solve. One crucial aspect is how the nervous system organizes the …