Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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A Study on Structural Design and Analysis of Composite Fairing to Reduce Air Resistance

공기 저항력 저감을 위한 복합재 페어링 구조 설계 및 해석 연구

  • Yonggyu, Lee (School of Mechanical Engineering, Kunsan National University) ;
  • Hyunbum, Park (School of Mechanical Engineering, Kunsan National University)
  • 이용규 (군산대학교 기계공학부) ;
  • 박현범 (군산대학교 기계공학부)
  • Received : 2022.10.20
  • Accepted : 2022.11.29
  • Published : 2022.12.31
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Abstract

This study aimed to design a 3D fairing shape to reduce the air resistance of commercial vehicles. Rankine Half Body was applied to design the fairing shape, and the design was verified through aerodynamic analysis. Aerodynamic loads were calculated considering the speed conditions of commercial vehicles and gust conditions to ensure the structural safety of the fairing. A glass fibre/epoxy composite material was used to design a fairing structure that satisfied the safety factor 3. The structural safety of the lightest fairing was confirmed through structural analysis.

페어링은 상용차가 주행 시 전면부에서 발생하는 유동박리의 저항을 제어하여 상용차 공기 저항력을 감소시키는 장치이다. 본 연구에서는 랭킨 반체 이론을 적용하여 3D페어링 형상을 설계하고 공력 해석을 통해 설계 결과를 검증하였다. 그리고 페어링의 구조적 안전성을 위해 상용차 과속조건과 돌풍 조건을 함께 고려하여 공력하중을 도출하였다. 이러한 공력 해석 결과를 기반으로 유리섬유/에폭시 복합재료를 적용하여 안전계수 3을 만족하는 페어링 구조 설계를 수행하였다. 최종 본 연구에서 가장 경량화된 페어링의 구조 해석을 수행하여 구조 안전성이 확인되었다.

Keywords

Acknowledgement

이 논문은 2022년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원과 2018년 정부(교육부)의 재원으로 한국연구재단의 지원(No. 2018R1D1A1B07043553)을 받아 수행된 연구임(P0012769, 2022년 산업혁신인재성장지원사업)

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