A new process to develop a hydraulic system adapted to biodegradable hydraulic oil for construction machinery: Case study integrating component analyses and SysML description in failure analyses

Satoshi Ohkawa, Sunkil Yun, Taketoshi Hibiya, Hidekazu Nishimura

Research output: Contribution to journalArticle


Causes and countermeasures for various kinds of hydraulic system failures in construction machinery generated by biodegradable hydraulic oil (bio-oil) are discussed. Previous component analytical methods can prevent all kinds of failures except hydraulic system malfunction, which requires a holistic approach for analysis. Using the Systems Modeling Language (SysML), the cause of malfunctions can be understood, and the most effective countermeasure can be obtained. Integration of a component analysis method and a holistic analysis method for system development is proposed.

Original languageEnglish
Pages (from-to)57-74
Number of pages18
Issue number2
Publication statusPublished - 2019 Jan 1



  • Biodegradable hydraulic oil
  • Construction machinery
  • Countermeasure
  • Hydraulic system
  • Malfunction
  • SysML

ASJC Scopus subject areas

  • Engineering(all)
  • Social Sciences(all)

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