Singular value decomposition control of electro-hydraulically driven parallel robot

Chifu Yang, Qitao Huang, Junwei Han

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presented a novel control scheme for electro-hydraulically driven parallel robot, in order to improve control performance by eliminating the effect of system coupling in controller. The mathematical model of the electro-hydraulic parallel robot is formulated, including mechanical system and electro-hydraulic system, using Kane method and hydromechanics principle. The decoupled space is exploited for electro-hydraulic parallel robot by using singular value decomposition (SVD) approach. In the decoupled space, a simple but effective controller is developed with only actuator position as its feedback. Theoretical analysis and numerical simulation results show that the proposed control greatly overcomes the drawbacks of dynamic coupling in the workspace of parallel robot and exhibits excellent control performance, especially tracking performance.

Original languageEnglish
Title of host publicationFrontiers of Manufacturing and Design Science II
Pages90-94
Number of pages5
DOIs
StatePublished - 2012
Externally publishedYes
Event2nd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2011 - Taichung, Taiwan, Province of China
Duration: 11 Dec 201113 Dec 2011

Publication series

NameApplied Mechanics and Materials
Volume121-126
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2011
Country/TerritoryTaiwan, Province of China
CityTaichung
Period11/12/1113/12/11

Keywords

  • Decoupling
  • Hydraulic system
  • Parallel robot
  • Singular value decomposition control

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