• Title/Summary/Keyword: Carbon-Fiber-Reinforced Plastics

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Analysis and Experiment on Dynamic Characteristics for Deployable Composite Reflector Antenna (전개형 복합재료 반사판 안테나의 동특성 분석 및 시험)

  • Chae, Seungho;Roh, Jin-Ho;Lee, Soo-Yong;Jung, Hwa-Young;Lee, Jae-Eun;Park, Sung-Woo
    • Journal of Aerospace System Engineering
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    • v.13 no.5
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    • pp.94-101
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    • 2019
  • The dynamic characteristics of the composite reflector panels are numerically and experimentally investigated. A dynamics model of the panel is analytically developed based on a deployment mechanism of the antenna. The deployment is passively activated using elastic energy of a spring with two rotational degrees of freedom. Using the flexible multi-body dynamic analysis ADAMS, dynamic behavior of the panels such as velocities, deformations, as well as reaction forces during the deployment, are investigated in the gravity and zero-gravity cases. The reflector panel is manufactured using carbon fiber reinforced plastics (CFRPs) and its deployment characteristics are experimentally observed using a zero-gravity deployment test. The impact response and vibration problems that occur during deployment of the antenna panel have been identified and reliably deployed using dampers.