Model-based coupling for co-simulation of robotic contact tasks
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Model-based coupling for co-simulation of robotic contact tasksAutor(es)
Data
2020-10Cita bibliográfica
A. Peiret, F. González, J. Kövecses, M. Teichmann and A. Enzenhoefer, "Model-Based Coupling for Co-Simulation of Robotic Contact Tasks", in IEEE Robotics and Automation Letters, vol. 5, no. 4, pp. 5756-5763, Oct. 2020, doi: 10.1109/LRA.2020.3010204.
Resumo
[Abstract]
Co-simulation of complex robotic systems allows the different components to be modelled 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 coupling schemes for optimal performance, such as real-time interactive environments and human and hardware-in-the-loop setups. Stability of non-iterative schemes is challenging due to the restricted and delayed information that is exchanged between subsystems, and robust prediction of interface variables is key. Here, we propose a framework for exchanging model information between mechanical systems with contact, where reduced-order models approximate the interface dynamics of the subsystems. Effective mass and force terms are formulated using a reduced representation of the model, which can then be exchanged between subsystems and integrated in their simulation. The analysis of several simulations of challenging robotic contact tasks, such as grasping and insertion with jamming, shows that model-based coupling allows for stable co-simulation with larger interface stiffness values, resulting in stronger coupling and higher simulation accuracy.
Palabras chave
Robotics
Co-simulation
Model-based coupling
Contact
Dynamics
Robótica
Co-simulación
Acoplamiento basado en modelos
Contacto
Dinámica
Co-simulation
Model-based coupling
Contact
Dynamics
Robótica
Co-simulación
Acoplamiento basado en modelos
Contacto
Dinámica
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ISSN
2377-3766