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How Springs Can Help to Stabilize Motions of Underactuated Systems with Weak Actuators
Department of Engineering Cybernetics, Norwegian University of Science and Technology. (Robotics and Control Engineering)
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik. (Robotics and Control Lab)
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik. (Robotics and Control Lab)ORCID-id: 0000-0003-0730-9441
Department of Engineering Cybernetics, Norwegian University of Science and Technology. (Robotics and Control Engineering (NTNU), Robotics and Control Lab (Umeå University))
2008 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In the field of robotics the energy spent for actuation is always an issue. It is often the case that some desired motions cannot be achieved by the robot due to limitations in actuation power. We suggest a simple solution to the problem: complement the actuators by some configuration of mechanical springs which delivers a torque profile that is well-tuned for the desired robot motion. As a result, the control effort for the original actuator will be reduced. In this case study we consider an underactuated planar two-link robot for experimental demonstration of the concept. The virtual holonomic constraints approach serves as analytical tool to parameterize, plan, and stabilize desired periodic motions.

Ort, förlag, år, upplaga, sidor
2008. s. 4963-4968
Nyckelord [en]
Motion Planning, Virtual Holonomic Constraints, Springs, Underactuated Mechanical Systems
Nationell ämneskategori
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Identifikatorer
URN: urn:nbn:se:umu:diva-88127ISI: 000307311605018OAI: oai:DiVA.org:umu-88127DiVA, id: diva2:713632
Konferens
47th IEEE Conference on Decision and Control, DEC 09-11, 2008, Cancun, MEXICO
Tillgänglig från: 2014-04-23 Skapad: 2014-04-23 Senast uppdaterad: 2018-06-08

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Mettin, UweLa Hera, PedroFreidovich, LeonidShiriaev, Anton

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