Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Design Optimization of the Support Frame of an Antenna Positioner Mounted on a Vehicle

차량 탑재형 안테나 포지셔너의 반사판 지지대 최적설계

  • Jang, Taeho (Department of Mechanical Design Engineering, Hanbat National Univ.) ;
  • Kim, Youngshik (Department of Mechanical Engineering, Hanbat National Univ.)
  • 장태호 (한밭대학교 기계설계공학과) ;
  • 김영식 (한밭대학교 기계공학과)
  • Received : 2013.10.14
  • Accepted : 2014.04.11
  • Published : 2014.05.01
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Abstract

In this research we present design optimization methods for a vehicle-mounted satellite antenna positioner. Our initial antenna positioner was conservatively designed to satisfy a worst case scenario where wind blew across the positioner at the speed of 120 km/h. Investigating stresses and safety based on Finite Element Methods (FEM), we find reflector support frames can be optimized to significantly reduce the weight of the positioner system. Thus, we optimize the reflector support frame from the given initial design while considering weight, maximum stress, maximum allowable deflection, cross section, and thickness. As a result, Shape C and the thickness of 2 mm are determined for the cross section of the reflector support frame. Applying this result, the weight of the new antenna positioner is 57.343 kg, which is decreased by 10.74% compared to the initial conservative design.

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References

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