Coupled systems mechanics

  • 제8권1호
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  • Pages.19-38
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  • 2019
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  • 2234-2184(pISSN)
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  • 2234-2192(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Influence of torsional rigidity of flexible appendages on the dynamics of spacecrafts

  • Chiba, Masakatsu (Department of Aerospace Engineering, Graduate School of Engineering, Osaka Prefecture University) ;
  • Magata, Hidetake (Department of Aerospace Engineering, Graduate School of Engineering, Osaka Prefecture University)
  • 투고 : 2018.09.21
  • 심사 : 2019.01.27
  • 발행 : 2019.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

The influence of torsional rigidity of hinged flexible appendage on the linear dynamics of flexible spacecrafts with liquid on board was analyzed by considering the spacecraft's main body as a rigid tank, its flexible appendages as two elastically supported elastic beams, and the onboard liquid as an ideal liquid. The meniscus of the liquid free surface due to surface tension was considered. Using the Lagrangian of the spacecraft's main body (rigid tank), onboard liquid, and two beams (flexible appendages) in addition to assuming the system moved symmetrically, the coupled system frequency equations were obtained by applying the Rayleigh-Ritz method. The influence of the torsional rigidity of the flexible appendages on the spacecraft's coupled vibration characteristics was primary focus of investigation. It was found that coupled vibration modes especially that of appendage considerably changed with torsion spring parameter ${\kappa}_t$ of the flexible appendage. In addition, variation of the main body displacement with system parameters was investigated.

키워드

과제정보

연구 과제 주관 기관 : JSPS

참고문헌

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