703 Passive control for flexible structure using magnetostrictive material

Bibliographic Information

Other Title
  • 703 超磁歪材料を用いた柔軟構造物の受動制振に関する研究

Search this article

Abstract

In general, space structures has flexibility due to the severe restriction of the launched payload weight. Therefore, the vibrations generated by various disturbances in orbit will cause some trouble concerning the structural strength, and attitude control. In addition, passive control is preferable for such a space system which has energy restrictions. In recent years the study using the piezoelectric element for passive control is carried out intensively, but there are few reports that achieved complete passive control on vibration. Now Giant Magnetostrictive Material(GMM) is attracted as alternative of piezoelectric element. GMM has various advantage such as high-stiffness, high energy density and low voltage driving compared with a piezoelectric element. GMM converts the strain energy of primary structure into magnetic energy, which is converted to electric energy by a surrounding coil and dissipated by external resistance which connected to a coil. However, it is not easy to apply such a damping system to continuous system. Therefore, we introduce cantilever beam as controlled object, and passive damping system by the use of GMM is applied to the beam by solving some intrinsic problems. The proposed method is validated by numerical analysis, and the results are discussed in view of mechanical and electrical features.

Journal

Keywords

Details 詳細情報について

  • CRID
    1573387452297467904
  • NII Article ID
    110010054314
  • NII Book ID
    AA11901770
  • ISSN
    13480235
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

Report a problem

Back to top