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Session WedAT1 Pegaso A Wednesday, October 10, 2012 ... - Lirmm

Session WedAT1 Pegaso A Wednesday, October 10, 2012 ... - Lirmm

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<strong>Session</strong> WedBT8 Gemini 1 <strong>Wednesday</strong>, <strong>October</strong> <strong>10</strong>, <strong>2012</strong>, 09:30–<strong>10</strong>:30<br />

Dynamics and Control II<br />

Chair<br />

Co-Chair<br />

09:30–09:45 WedBT8.1<br />

Exploiting Redundancy in Cartesian Impedance<br />

Control of UAVs Equipped with a Robotic Arm<br />

Vincenzo Lippiello and Fabio Ruggiero<br />

Dipartimento di Informatica e Sistemistica, Università degli studi di Napoli<br />

Federico II, Italy<br />

• A Cartesian impedance control for UAVs<br />

equipped with a robotic arm is presented.<br />

• A dynamic relationship between external<br />

forces acting on the structure and the<br />

system motion, specified in terms of<br />

Cartesian space coordinates, is provided.<br />

• Through a suitable choice of such<br />

variables it is possible to exploit the<br />

redundancy of the system to perform<br />

some useful subtasks.<br />

• The hovering control of a quadrotor,<br />

equipped with a 3-DOF robotic arm and<br />

subject to contact forces and external<br />

disturbances is tested in a simulated case<br />

study.<br />

UAV/Arm system illustration with<br />

the related reference frames.<br />

<strong>10</strong>:00–<strong>10</strong>:15 WedBT8.3<br />

A hybrid particle/grid wind model for realtime<br />

small UAV flight simulation<br />

Adam Harmat and Inna Sharf<br />

Mechanical Engineering, McGill University, Canada<br />

Michael Trentini<br />

DRDC-Suffield, Canada<br />

• Fast vortex particle method for approximate wind dynamics<br />

• Integrated with Gazebo robot simulator as a plug-in<br />

• Qualitative comparison to high-fidelity CFD test cases<br />

• Small UAV flight over a building, comparison to simpler wind model<br />

09:45–<strong>10</strong>:00 WedBT8.2<br />

Modeling and Motion Analysis of Fixed-pitch Coaxial<br />

Rotor Unmanned Helicopter<br />

Satoshi Suzuki<br />

Young Researchers Empowerment Center , Shinshu University, Japan<br />

Takahiro Ishii<br />

Graduate School of Science and Technology, Shinshu University, Japan<br />

Gennai Yanagisawa and Yasutoshi Yokoyama<br />

GEN Corporation, Japan<br />

Kazuki Tomita<br />

Engineering System, Japan<br />

• Fixed-pitch co-axial rotor unmanned<br />

helicopter with specific mechanisms is<br />

proposed.<br />

• Precise mathematical model of the<br />

helicopter is derived using multi-body<br />

dynamics technique.<br />

• Motion analysis is performed to<br />

establish the relation between the<br />

motion and mechanical parameters.<br />

<strong>2012</strong> IEEE/RSJ International Conference on Intelligent Robots and Systems<br />

–135–<br />

Fixed-pitch co-axial rotor<br />

unmanned helicopter<br />

<strong>10</strong>:15–<strong>10</strong>:30 WedBT8.4<br />

Parallel Force-Position Control Mediated by<br />

Tactile Maps for Robot Contact Tasks<br />

Simone Denei, Fulvio Mastrogiovanni and Giorgio Cannata<br />

University of Genova, Italy<br />

• Tactile maps prove to be<br />

a good representation<br />

structure for defining<br />

contact trajectories.<br />

• This concept is further extended for<br />

embedding additional information that are<br />

local with respect to a specific robot<br />

body area.<br />

• Augmented maps provides a good way to<br />

associate references, such as forces or<br />

contact motion velocities, to areas on the<br />

robot skin.<br />

An example of augmented tactile<br />

map (on the right) of the skin<br />

placed on a robot forearm (on the<br />

left). A polygon divides it into<br />

an inner region (in yellow) and<br />

an outside region (in grey)<br />

associated to different force<br />

references.<br />

• The contact centroid is reported on the maps and used to extract the<br />

references to fed to the Parallel Force-Position Control moving the<br />

robot in contact.

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