The Helmholtz-Hodge decomposition—a survey

H Bhatia, G Norgard, V Pascucci… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
The Helmholtz-Hodge Decomposition (HHD) describes the decomposition of a flow field into
its divergence-free and curl-free components. Many researchers in various communities like …

Geometric motion planning: The local connection, Stokes' theorem, and the importance of coordinate choice

RL Hatton, H Choset - The International Journal of Robotics …, 2011 - journals.sagepub.com
The locomotion of articulated mechanical systems is often complex and unintuitive, even
when considered with the aid of reduction principles from geometric mechanics. In this …

Geometric swimming at low and high Reynolds numbers

RL Hatton, H Choset - IEEE Transactions on Robotics, 2013 - ieeexplore.ieee.org
Several efforts have recently been made to relate the displacement of swimming three-link
systems over strokes to geometric quantities of the strokes. In doing so, they provide …

Nonconservativity and noncommutativity in locomotion: geometric mechanics in minimum-perturbation coordinates

RL Hatton, H Choset - The European Physical Journal Special Topics, 2015 - Springer
Geometric mechanics techniques based on Lie brackets provide high-level
characterizations of the motion capabilities of locomoting systems. In particular, they relate …

Soap-bubble optimization of gaits

S Ramasamy, RL Hatton - 2016 IEEE 55th Conference on …, 2016 - ieeexplore.ieee.org
In this paper, we present a geometric variational algorithm for optimizing the gaits of
kinematic locomoting systems. The dynamics of this algorithm are analogous to the physics …

Control of snake robots with switching constraints: trajectory tracking with moving obstacle

M Tanaka, F Matsuno - Advanced Robotics, 2014 - Taylor & Francis
We propose control of a snake robot that can switch lifting parts dynamically according to
kinematics. Snakes lift parts of their body and dynamically switch lifting parts during …

Guided motion planning for snake-like robots based on geometry mechanics and HJB equation

X Guo, W Zhu, Y Fang - IEEE Transactions on Industrial …, 2018 - ieeexplore.ieee.org
In this paper, a novel guided motion planning method is proposed for snake-like robots,
which decomposes the configuration space into the fiber space and the gait space, with the …

Optimal gaits for drag-dominated swimmers with passive elastic joints

S Ramasamy, RL Hatton - Physical Review E, 2021 - APS
In this paper we identify optimal swimming strategies for drag-dominated swimmers with a
passive elastic joint. We use resistive force theory to obtain the dynamics of the system. We …

Motion planning for redundant multi-bodied planar kinematic snake robots

O Itani, E Shammas - Nonlinear Dynamics, 2021 - Springer
In this paper, the motion planning problem for planar snake-like robots with more than three
links that is subjected to nonholonomic constraints is solved explicitly. In other words, for a …

Geometric gait optimization beyond two dimensions

S Ramasamy, RL Hatton - 2017 American control conference …, 2017 - ieeexplore.ieee.org
Locomotion for many articulated mechanical systems and animals is achieved through cyclic
changes in shapes called gaits. In this paper we extend the geometric variational algorithm …