• 한국독성학회:학술대회논문집
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• 한국독성학회 2003년도 추계학술대회
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• pp.162-162
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• 2003

The psychological and biochemical stress responses of healthy men and women were measured under the normal situation. Experimental subjects, who were cadets of the Korea Air Force Academy, were selected by the random sampling. Quantitative scaling of the psychological stress was obtained by life stress test(Cheon et al, 2000) and Minnesota Multiphasic Personality Inventory(MMPI).(omitted)

• 한국환경성돌연변이발암원학회:학술대회논문집
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• 한국환경성돌연변이발암원학회 2003년도 추계학술대회
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• pp.162-162
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• 2003

• 한국군사과학기술학회지
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• 제20권3호
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• pp.345-351
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• 2017

A wind tunnel test for the scaled parachute models was performed to verify aerodynamic characteristics for practical usage of Korean low cost low altitude aerial delivery system. The cruciform shaped cargo parachute models for heavy and light weight were ejected into wind tunnel test section; and the drag forces acting on the models in steady condition were measured in accordance with velocity. Also, the maximum opening forces during inflation were obtained and captured by a high speed camera to analyze the inflation characteristics and evaluate the design of the low cost aerial delivery system. The results showed a reliable stability and met the design requirement of delivery operation system for R.O.K Air Force.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2023년도 추계학술발표대회
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• pp.1051-1052
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• 2023

조류충돌(Bird Strike)은 경제적 손실, 인명적 피해를 야기하여 공군의 항공작전을 제한하는 위협요소이다. 현 공군에서는 조수퇴치조(Bird Alert Team)의 경보 발령에 의존하거나 조류의 행동을 연구하는 등 인적 역량에 의존하는 시스템을 채택하고 있다. 본 연구는 CNN을 이용하여 활주로의 유해조류를 인식 및 분류하는 자동화 시스템에 대한 제안이다. 웹캠을 활용한 실시간 유해조류를 인식하는 연구를 통해 향후 운항관제대와의 연계, 지향성 조류퇴치 장비와의 연동 방안을 제시하여 공군의 조수퇴치조(Bird Alert Team)에 대한 자동화를 실현하고 공군에서 추진중인 스마트 비행단에 이바지하고자 한다.

• International Journal of Aeronautical and Space Sciences
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• 제11권4호
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• pp.345-350
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• 2010

The repetitive vibrating action of an aerodynamic load causes an external fuel tank's horizontal fin to experience a shorter life cycle than its originally predicted one. Store separation analysis is needed to redesign the fin of an external fuel tank. In this research, free-drop tests were conducted using 15% scaled models in a subsonic wind tunnel in order to analyze the store separation characteristics of an external fuel tank. The store separation trajectory based on grid tests was also obtained to verify the results of the free-drop tests. The results acquired from the free-drop tests correlated well with the grid tests in regards to the trajectories and behavior of the stores separated from the aircraft. This agreement was especially noted in the early stages of the store separation.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2003년도 The Fifth Asian Computational Fluid Dynamics Conference
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• pp.2-2
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• 2003

• 한국전산유체공학회지
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• 제13권4호
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• pp.80-85
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• 2008

The prediction of the separation trajectories of external stores released from a military aircraft is an important task in the aircraft design area having the objective to define the operational and release envelopes. This paper presents the results obtained for store separation by employing commercial softwares, FLUENT and CFD-FASTRAN. FLUENT treats the rigid body motion by employing a remeshing scheme. CFD-FASTRAN uses Chimera(overset) grid and interpolations. It was found that, for the prediction of the trajectories and behavior of the stores separated from the wing, both codes show the good agreement with the experimental results.

• 한국군사과학기술학회지
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• 제15권2호
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• pp.186-192
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• 2012

Noise is a major cause of hearing loss in the air base. There are lots of risk factors of hearing loss including noise, and hearing loss can be accelerated by combined effects of these risk factors. Here in, we reviewed risk factors of hearing loss, and analysed key risk factors inducing hearing loss in the air base. Risk factors exacerbating hearing loss with noise were mainly investigated in this research because noise could not be an avoidable risk factor in the air base. Analysed data will contribute to make green environment minimizing hearing loss of pilots and supporting personnels in the air base.

• 공학교육연구
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• 제24권5호
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• pp.38-45
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• 2021

The CanSat was designed as an educational satellite simulation program that implements the overall system of the satellite such as the command processing unit, the communication unit, and the power unit in a structure of the size of a can. In particular, the training effect is very excellent because the trainee can learn a process similar to the actual satellite development process by designing, manufacturing, testing, and launching. Republic of Korea Air Force Academy has been using the CanSat production kit used by the domestic can satellite contest experience department for education, but since it was produced based on PCB, it was impossible to show creativity and operation was restricted even with small mistakes. In this paper, we analyze the existing CanSat kit and propose a new educational CanSat kit that can be used in creative engineering design and practice subjects that will be reorganized into a regular course from 2021, and a lesson plan. In conclusion, by using the proposed CanSat kit for lectures, it is possible to achieve educational purposes and effects, improve lecture satisfaction, and provide stable instruction.

• 한국항공우주학회지
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• 제50권8호
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• pp.573-581
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• 2022

본 논문은 단풍나무 씨앗형 자동회전 과학 탑재체 2개를 사출하고 기상정보를 수집하는 임무를 하는 캔위성을 개발하는 내용을 다루고 있다. 캔위성은 2개의 자동회전형 과학 탑재체와 이를 실을 수 있는 캔위성 본체로 구성된다. 캔위성 본체는 과학 탑재체를 사출하기 위한 장치들과 지상국과의 통신을 위한 장치들을 탑재하고, 각기 다른 지정 고도에서 과학 탑재체를 하나씩 사출한다. 과학 탑재체는 큰 날개와 탑재 공간으로 구성되며, 큰 날개는 회전하면서 양력을 발생시켜 낙하 속도를 늦춘다. 구체적으로, 사출된 이후 20m/s 이하의 속도로 하강하며 회전율, 기압과 온도를 측정하고 초당 1회의 속도로 측정값을 캔위성본체로 송신한다. 통신 시스템은 마스터-슬레이브 구조로 과학 탑재체는 모든 데이터를 마스터인 캔위성본체로 송신하고, 캔위성 본체는 수신받은 데이터와 자체 데이터를 종합하여 지상국으로 전송한다. 자체 개발한 지상국 소프트웨어를 이용해 수신하는 모든 데이터를 실시간으로 확인할 수 있다. 시뮬레이션 환경에서 모의실험을 수행했고, 임무 요구조건을 만족하는 캔위성의 성능을 확인할 수 있었다.