대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제29권7호
  • /
  • Pages.820-827
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  • 2005
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  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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소형 장기체공 무인기용 왕복엔진 성능 예측 시뮬레이션 연구

A Study on Performance Simulation of an Reciprocating Engine for Small Long Endurance Unmanned Aerial Vehicles

  • 장성호 (한국항공우주연구원 스마트무인기기술개발사업단) ;
  • 구삼옥 (한국항공우주연구원 스마트무인기기술개발사업단) ;
  • 신영기 (세종대학교 기계공학과)
  • 발행 : 2005.07.01
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초록

Development of an engine with good fuel economy is very important for successful implementation of long endurance miniature UAVs (unmanned aerial vehicles). In the study, a 4-stroke glow-plug engine was modified to a gasoline-fueled spark-ignition engine. Engine tests measuring performance and friction losses were conducted to tune a simulation program for performance prediction. It has been found that excessive friction losses are caused by insufficient lubrication at high speeds. The simulation program predicts that engine power and fuel economy get worse with high altitude due to increasing portion of friction losses. The simulation results suggest quantitative guidelines for further development of a practical engine.

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참고문헌

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