Publications associées à Saut

Gait-dependent Traversability Estimation on the k-rock2 Robot

Auke Ijspeert, Matthew Alfonso Estrada, Mohammadreza Ebrahimi

Assessing the traversability of rugged terrain is a difficult challenge for legged robots, especially when they implement multiple, distinct gaits. We tackle this problem on the k-rock2 amphibious, sprawling gait robot by training a gait-dependent traversa ...

IEEE2022

Flexural-tensegrity snapping tails for bio-inspired propulsion in fluids

Pedro Miguel Nunes Pereira de Almeida Reis, Claudio Boni

Many aquatic animals propel themselves by flapping their tails. Leveraging a recently proposed snapping cantilever beam based on the concept of flexural tensegrity, we propose a bio-inspired propulsion device. The design comprises a segmental beam with hol ...

ELSEVIER2022

Repeated exposure to tripping like perturbations elicits more precise control and lower toe clearance of the swinging foot during steady walking

Silvestro Micera

Controlling minimum toe clearance (MTC) is considered an important factor in preventing tripping. In the current study, we investigated modifications of neuro-muscular control underlying toe clearance during steady locomotion induced by repeated exposure t ...

ELSEVIER2021

A spiking central pattern generator for the control of a simulated lamprey robot running on SpiNNaker and Loihi neuromorphic boards

Auke Ijspeert, Jonathan Patrick Arreguit O'Neill, Axel von Arnim, Emmanouil Angelidis

Central pattern generator (CPG) models have long been used to investigate both the neural mechanisms that underlie animal locomotion, as well as for robotic research. In this work we propose a spiking central pattern generator (SCPG) neural network and its ...

Iop Publishing Ltd2021

Neuromuscular Controller Embedded in a Powered Ankle Exoskeleton: Effects on Gait, Clinical Features and Subjective Perspective of Incomplete Spinal Cord Injured Subjects

Auke Ijspeert, Florin Dzeladini

Powered exoskeletons are among the emerging technologies claiming to assist functional ambulation. The potential to adapt robotic assistance based on specific motor abilities of incomplete spinal cord injury (iSCI) subjects, is crucial to optimize Human-Ro ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

Amphibious and Sprawling Locomotion: From Biology to Robotics and Back

Auke Ijspeert

A milestone in vertebrate evolution, the transition from water to land, owes its success to the development of a sprawling body plan that enabled an amphibious lifestyle. The body, originally adapted for swimming, evolved to benefit from limbs that enhance ...

2020

Jumping dynamics of aquatic animals

Emmanuel Georges Albert Virot

Jumping out of water is a phenomenon exhibited by a variety of aquatic and semi-aquatic animals. Yet, there is no common groundwork that clarifies the physical constraints required to jump out of water. In this study, we elucidate the physical conditions r ...

ROYAL SOC2019

Designing Minimal and Scalable Insect-Inspired Multi-Locomotion Millirobots

Jamie Paik, Zhenishbek Zhakypov, Kazuaki Mori

In ant colonies, collectivity enables division of labour and resources with great scalability. Beyond their intricate social behaviours, individuals of the genus Odontomachus, also known as trap-jaw ants, have developed remarkable multi-locomotion mechanis ...

2019

A Soft Robot for Random Exploration of Terrestrial Environments

Dario Floreano, Stefano Mintchev, Davide Zappetti, Jérémie Willemin

A swarm of randomly moving miniature robots is an effective solution for the exploration of unknown terrains. However, the deployment of a swarm of miniature robots poses two challenges: finding an adequate locomotion strategy for fast exploration and obst ...

IEEE2018

Performance analysis of jump-gliding locomotion for miniature robotics

Dario Floreano, Mirko Kovac, Jean-Christophe Zufferey

Recent work suggests that jumping locomotion in combination with a gliding phase can be used as an effective mobility principle in robotics. Compared to pure jumping without a gliding phase, the potential benefits of hybrid jump-gliding locomotion includes ...

Iop Publishing Ltd2015

The Design and Control of the Multi-Modal Locomotion Origami Robot, Tribot

Jamie Paik, Zhenishbek Zhakypov, Mohsen Falahi

Origami robots (Robogamis) use architecture to strategically activate different sets and sequence of actuators to achieve large variety of reconfigurable forms. Tribot is a unique mobile origami robot that can simultaneously choose between two modes of loc ...

2015

Compliant snake robot locomotion on horizontal pipes

Auke Ijspeert, Kamilo Andres Melo Becerra, Mehmet Hasan Mutlu, Massimo Vespignani

In this paper we introduce a body-compliant Modular Snake Robot executing rolling gaits on different cylindrical geometries. In the state of the art it is considered that an active shape adaptation to the terrain while a gait is executed produces better pe ...

2015

A Flying Robot with Adaptive Morphology for Multi-Modal Locomotion

Dario Floreano, Ludovic Daler, Julien Jean Denis Nicolas Lecoeur, Patrizia Bernadette Hählen

Most existing robots are designed to exploit only one single locomotion mode, such as rolling, walking, flying, swimming, or jumping, which limits their flexibility and adaptability to different environments where specific and different locomotion capabili ...

2013

Modeling a diversity of salamander motor behaviors with coupled abstract oscillators and a robot

Jérémie Knüsel

Salamanders are capable of a variety of locomotor behaviors including swimming, underwater stepping, and forward and backward land stepping. According to electromyographic and kinematic recordings of the trunk, each of these behaviors is characterized by a ...

EPFL2013

In-field objective evaluation and analysis in ski jumping using inertial sensors

Julien Chardonnens

Ski jumping, a prestigious Olympic discipline, has been constantly evolving. Over the years, the biomechanics fundamentals of this highly technical sport have been intensively documented by investigating the jump timing, kinematics, dynamics and motor cont ...

EPFL2012

Bioinspired Jumping Locomotion for Miniature Robotics

Mirko Kovac

In nature, many small animals use jumping locomotion to move in rough terrain. Compared to other modes of ground locomotion, jumping allows an animal to overcome obstacles that are relatively large compared to its size. In this thesis we outline the main d ...

EPFL2010

Non-adiabatic coupling vectors within linear response time-dependent density functional theory

Ursula Röthlisberger, Ivano Tavernelli, Enrico Marko Tapavicza

A method is developed to compute the nonadiabatic coupling vectors (NACVs) between electronic ground and excited states as well as between any possible pair of excited states within the framework of linear response time-dependent density functional theory ...

2009

Online optimization of swimming and crawling in an amphibious snake robot

Auke Ijspeert, Alessandro Crespi

An important problem in the control of locomotion of robots with multiple degrees of freedom (e.g., biomimetic robots) is to adapt the locomotor patterns to the properties of the environment. This article addresses this problem for the locomotion of an amp ...

2008

Dynamic Obstacle Clearing for Real-time Character Animation

Daniel Thalmann, Ronan Boulic, Pascal Glardon

This paper proposes a novel method to control virtual characters in dynamic environments. A virtual character is animated by a locomotion and jumping engine, enabling production of continuous parameterized motions. At any time during runtime, flat obstacle ...

Springer-Verlag2006

On-line adapted transition between locomotion and jump

Daniel Thalmann, Ronan Boulic, Pascal Glardon

Motion blending is widely accepted as a standard technique in computer animation, allowing the generation of new motions by interpolation and/or transition between motion capture sequences. To ensure smooth and seamless results, an important property has t ...

2005