Control of multi modal structural vibration using digital self-powered device

Shigeru Shimose, Kanjuro Makihara, Junjiro Onoda, Shinsuke Takeuchi

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

Abstract

This paper demonstrates various investigations of our innovative vibration suppression method, called "Digital Self-Powered". The vibration is inhibited by properly switching the status of an electric circuit made up of an inductor and a selective switch connected to a piezoelectric transducer, the control logic calculation and the switching is performed by a digital microprocessor that is driven by electrical energy converted from mechanical vibration energy. Therefore, this vibration suppression system runs without any power supply. This feature of "self-powered" makes this method advantageous in various applications. It is known that some analog techniques can also control the status of an electric circuit adequately and suppress monotone vibrations nicely. However, these analog techniques suppress multimode vibration less-effectively. To realize an ideal vibration suppression system that is both self-powered and effective in suppressing multimode vibration, sophisticated control logic is installed in the digital microprocessor that is driven by the energy converted from vibration energy. In this paper, we describe the detail of our self-powered systems, and experimental results of multimodal vibration suppression using self-powered systems. Moreover, experimental results were highlighted in light of its high damping performance and adaptability in various vibrational conditions.

Original languageEnglish
Title of host publication62nd International Astronautical Congress 2011, IAC 2011
Pages5767-5774
Number of pages8
Publication statusPublished - 2011 Dec 1
Event62nd International Astronautical Congress 2011, IAC 2011 - Cape Town, South Africa
Duration: 2011 Oct 32011 Oct 7

Publication series

Name62nd International Astronautical Congress 2011, IAC 2011
Volume7

Other

Other62nd International Astronautical Congress 2011, IAC 2011
Country/TerritorySouth Africa
CityCape Town
Period11/10/311/10/7

ASJC Scopus subject areas

  • Aerospace Engineering

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