Spatial disturbance suppression of a flexible system based on wave model

Yuuki Inoue, Seiichiro Katsura

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Currently, there is a need for precise motion control of industrial machines. For precise motion, it is important to keep the motion robust against disturbances such as gravity or reaction force from the environment. Industrial machines include flexible components such as gears and couplings, and they are modeled as a resonant system. Models expressing resonant systems are classified into lumped-parameter model and distributed-parameter model. Conventionally, the control theory based on the lumped-parameter model has been widely researched because that model is easy to deal with. However, the position which a disturbance acts on is limited to the generator or the lumped inertia of the load in these methods. Therefore, there is a danger that the disturbance suppression performance may deteriorate in the case that a distributed disturbance acts on the load. Here, the distributed-parameter model considering the position which a disturbance acts on, is proposed based on the wave equation. Wave-based modeling can consider the spatial dynamics of a disturbance. As a result, conventional disturbance suppression control is extended for the spatial dynamics.

Original languageEnglish
Pages (from-to)236-243
Number of pages8
JournalIEEJ Journal of Industry Applications
Issue number3
Publication statusPublished - 2018


  • Reflected wave rejection
  • Robust control
  • Spatial disturbance
  • Vibration control
  • Wave system

ASJC Scopus subject areas

  • Automotive Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Spatial disturbance suppression of a flexible system based on wave model'. Together they form a unique fingerprint.

Cite this