Vibration properties of mirror foils for hard X-ray telescope onboard satellite

Takahiro Yoshimura, Tatsuro Kosaka, Hisamitsu Awaki, Keiji Ogi, Manabu Ishid, Yoshitomo Maeda, Akihiro Furuzawa, Takuya Miyazawa, Nobuyuki Yamane, Hiroyoshi Kato, Hideyo Kunieda

研究成果: Conference contribution


ASTRO-H is a next version of Japanese X-ray astronomy satellite for lunch in 2014. The hard X-ray telescope (HXT) on board the satellite has a cylindrical mirror housing which contains reflection circular mirror foils. In the present paper, vibration properties of the mirror foils installed in the HXT on-board a satellite were investigated. Vibration tests and FEM analysis of mirror foils installed in the part model of HXT were conducted. From the experimental results, it appeared that the mirror had resonant frequencies at 64, 73 and 118Hz. The modal shapes of 64 and 73Hz peaks showed that the maximum amplitude appeared at edges of the foil. On the other hand, vibration amplitude became maximum at the center in the modal shape of 118Hz peak. In addition, it appeared that the first peak of the edge mode decreased with increasing acceleration while the second peak had weak dependency on acceleration. These vibration behaviors are thought to be governed degree of constraint of the connections between the foil and alignment bars.

ホスト出版物のタイトルSpace Telescopes and Instrumentation 2012
ホスト出版物のサブタイトルUltraviolet to Gamma Ray
出版ステータスPublished - 2012
イベントSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam, Netherlands
継続期間: 01-07-201206-07-2012


名前Proceedings of SPIE - The International Society for Optical Engineering


OtherSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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