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Reliability of tri-axial differential-drive in-pipe mobile robot

  • Xue Wen Zhang*
  • , Sheng Yuan Jiang
  • , Ya Zhou Jia
  • , Xu Dong Jiang
  • *Corresponding author for this work
  • Jilin University
  • Beihua University

Research output: Contribution to journalArticlepeer-review

Abstract

A fault tree with the improper differential-drive as the top incident was established by the reliability analyses of the driving unit of a tri-axial differential-drive in-pipe mobile robot. The things accounting for the fault of the differential-drive were found by solving the minimal path set and the minimal cut-set. A tri-axial differential-drive in-pipe mobile robot was redesigned by the reconfiguration concept. The numerical simulation and the trial operation of the redesigned prototype show that, compared with the original one, its movement smoothness, environmental adaptability and driving performance were improved, enhancing the reliability of the robot in its long-distance in-pipe operation.

Original languageEnglish
Pages (from-to)365-369
Number of pages5
JournalJilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)
Volume38
Issue number2
StatePublished - Mar 2008
Externally publishedYes

Keywords

  • Fault tree
  • Mechanical design
  • Minimal cut-set
  • Minimal path set
  • Reliability
  • Tri-axial differential

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