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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 University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (Robotics and Control Lab)
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (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 (English)Conference paper, Published paper (Refereed)
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.

Place, publisher, year, edition, pages
2008. 4963-4968 p.
Keyword [en]
Motion Planning, Virtual Holonomic Constraints, Springs, Underactuated Mechanical Systems
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:umu:diva-88127ISI: 000307311605018OAI: oai:DiVA.org:umu-88127DiVA: diva2:713632
Conference
47th IEEE Conference on Decision and Control, DEC 09-11, 2008, Cancun, MEXICO
Available from: 2014-04-23 Created: 2014-04-23 Last updated: 2014-04-23

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Mettin, UweLa Hera, PedroFreidovich, LeonidShiriaev, Anton

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Citation style
  • apa
  • ieee
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  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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  • asciidoc
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