High-powered non-linear shock damper using ER fluid

Kanjuro Makihara, Junjiro Onoda, Kenji Minesugi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We developed the novel control logic for a shock damper using particledispersion Electro-Rheological (ER) fluid. This is a high-powered means of shock attenuation for satellite instruments that are subjected to lift-off shock or pyrodevice ignition shock. The proposed method attenuates the shock so that the instrument's acceleration does not exceed the critical value, even when the shock is too large to be accepted. In contrast to the conventional linear shock controls, the proposed shock control does not attempt to attenuate a small shock in order to prepare for attenuating a coming large shock.

Original languageEnglish
Title of host publicationACA' 2007 - 17th IFAC Symposium on Automatic Control in Aerospace - Proceedings
Number of pages6
EditionPART 1
Publication statusPublished - 2007 Dec 1
Externally publishedYes
Event17th IFAC Symposium on Automatic Control in Aerospace, ACA' 2007 - Toulouse, France
Duration: 2007 Jun 252007 Jun 29

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
ISSN (Print)1474-6670


Other17th IFAC Symposium on Automatic Control in Aerospace, ACA' 2007


  • ER fluid
  • Shock absorber
  • Shock damper

ASJC Scopus subject areas

  • Control and Systems Engineering


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