9 accepted papers
Robotic contact manipulation involves applying controlled forces at contact points to guide an object along a desired trajectory while respecting the underlying physical interactions. This paper presents a novel framework that integrates dynamic modeling and Reinforcement Learning (RL) to achieve ro
Contact interactions play a major role in the dynamic analysis of robotic arms, where they can be represented as unilateral constraints. However, incorporating these contacts into the system dynamic model is a challenging task, given the numerous ways to account for them. This paper presents and com
Co-simulation is a useful approach in the modelling of robotic systems composed of multiple parts. In co-simulation, the subsystems only exchange information at communication points. The time delay of information exchange may cause error and instability. Thus, an appropriate way to determine the int
Haptic interfacing typically requires high communication frequencies in order to render realistic interactions between a user and a virtual environment. In this work, we introduce reduced interface modelling (RIM) as a method to bridge the discrepancy in frequency requirements between haptic devices
Co-simulation of complex robotic systems allows the different components to be modeled and simulated independently using methods and tools tailored to their nature and time-scale, which makes the implementation process more modular and flexible. Some applications require the use of non-iterative cou
An important element of wheeled robot operations on uneven and unstructured terrain is the ability to overcome obstacles. In this letter, we deal with a part of this obstacle negotiation problem. We particularly investigate the ability of a wheeled robot, originating from its mechanical design, to s
State estimation is crucial for exploration rovers. It provides the pose and velocity of the rover by processing measurements from onboard sensors. Classical wheel odometry only employs encoder measurements of the two wheels in the differential drive. As a consequence, input noise can lead to large
We propose a novel integrator for implementing bilateral constraints in multibody simulation using variational integrator methods. We first construct a variational penalty method, which is used to enforce a constraint. The penalty term is simulated using an asynchronous variational integrator, allow…
In this work we present a method of systematically selecting regions of a haptic workspace to be used for navigation of large virtual environments. Existing navigational techniques require the partitioning of the workspace into a region of manipulation and a separate region for navigation tasks. The…