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가스터빈 엔진 터빈 블레이드의 냉각성능 상사시험 평가 연구
정희윤(Heeyoon Chung),이동호(Dong-Ho Rhee),김석민(Seokmin Kim),강영석(Young-Seok Kang),김재호(Jaiho Kim),안철주(Chulju Ahn),임병권(Byeongkwon Lim),이복원(Bokwon Lee) 한국유체기계학회 2022 유체기계 연구개발 발표회 논문집 Vol.2022 No.11
In this study, a similar test was designed to evaluate the cooling performance of the high-pressure turbine blades of a gas turbine engine, and a study was conducted to verify the similarity through analysis and experiments. The main similarity variables representing the cooling performance of the turbine blades were defined, and the similarity test conditions were derived from the engine conditions so that the similarity variables could satisfy the similarity. It was confirmed that the similarity was satisfied by performing a conjugated heat transfer analysis on the same test conditions, and the cooling performance of the turbine blades was experimentally evaluated by conducting a heat transfer experiment using an infrared thermal imaging camera under the same conditions. In conclusion, it was confirmed that the cooling performance of high-temperature components such as high-pressure turbine nozzles and blades operating at high temperatures in a relaxed pressure and temperature environment without simulating a high-pressure and high-temperature environment such as an engine can be evaluated through a similar test.
이태형(Yi Tae-Hyeong),김근택(Kim Keun-Taek),안석민(Ahn Seokmin),이대성(Lee Dae Sung) 한국항공우주연구원 2011 항공우주산업기술동향 Vol.9 No.1
자동차와 항공기가 결합된 신개념 운송수단인 미래형 개인용 항공기의 개발 현황을 살펴보고, 이러한 개인용 항공기의 개념을 분석하여 향후 기술 개발 시 필요한 요구사항을 정리하였다. 최근 들어 미래형 개인용 항공기의 차세대 운송수단으로서의 그 가능성을 인지하여 미국을 중심으로 정부, 민간회사, 학계에서 미래형 개인용 항공기와 관련된 다양한 연구를 수행하고 있다. 본 논문에서는 미래형 개인용 항공기의 개발 프로그램인 AGATE, PAVE, SATS 및 NGATS 등을 먼저 알아보고, 현재 상용화가 진행 중인 Terrafugia사의 Transition과 Moller International사의 M400 Skycar의 개발 현황, 기체의 특징 및 응용 기술을 분석하였다. 이를 바탕으로 추후 미래형 개인용 항공기를 개발 시 필요한 핵심기술을 제시한다. The current development trend and status of a personal air vehicle, known as the novel concept of a transportation that combines a personal car with a light general aviation aircraft, is summarized to investigate its feasibility as a future transportation. In the paper, the development programs of a personal air vehicle such as AGATE, PAVE, SATS and NGATS are first summarized, and then the design, technical development and testing activities of Terrafugia’s Transition and Moller International’s M400 Skycar, which will be commercialized in a short time, are reviewed. Based on the assessment of technical issues with those vehicles, the key technologies for the future development of the personal air vehicle are suggested with two basic requirements of safety and mobility.