• 국방과기술
• /
• 7호통권233호
• /
• pp.18-27
• /
• 1998

• 국방과기술
• /
• 5호통권219호
• /
• pp.16-27
• /
• 1997

• 한국콘텐츠학회논문지
• /
• 제16권3호
• /
• pp.732-741
• /
• 2016

본 연구는 공군간부들의 직무만족도, 심리적 안녕감이 셀프리더십에 미치는 영향을 검증하였다. 연구대상은 공군간부 211명을 대상으로 중다회귀분석을 실시하였다. 그 결과는 다음과 같다. 첫째, 직무만족도, 심리적 안녕감, 셀프리더십의 관계에서 모두 유의미한 정적 상관이 있는 것으로 나타났다. 둘째, 직무만족도, 심리적 안녕감이 셀프리더십의 하위변인에 미치는 영향을 살펴본 결과, 셀프리더십 하위변인인 자기기대와 심리적 안녕감의 개인적 성장, 환경에 대한 통제력과 직무만족도의 하위변인은 행정이 셀프리더십에 영향을 미치는 것으로 나타났다. 또한 자기보상에서는 심리적 안녕감의 개인적 성장, 삶의 목적, 자율성과 직무만족도의 대인관계, 보상체계가 셀프리더십에 영향을 미치는 것으로 나타났다. 마지막으로 셀프리더십 전체에서는 직무만족도의 행정과 대인관계, 그리고 심리적 안녕감의 개인적 성장, 삶의 목적, 자율성이 셀프리더십에 영향을 미치는 것으로 나타났다. 이밖에도 본 연구에서는 연구결과의 의미와 제한점에 대해서 논의하였다.

• 한국시뮬레이션학회논문지
• /
• 제28권1호
• /
• pp.57-65
• /
• 2019

공중급유기는 앞으로 공군 작전의 효율성을 높여줄 것으로 기대되고 있다. 공중급유기의 도입으로 전투기의 항속 거리 및 항속 시간이 증가되어 작전 가능 시간이 향상될 것이라 기대되기 때문이다. 그러나 공중급유기를 도입하는데 천문학적인 비용이 들기 때문에 신중한 논의가 필요하지만 아직은 그러한 논의가 부족한 것이 실정이다. 따라서 본 연구에서는 ABM(Agent Based Modeling) 기법을 활용하여 초계작전 시 공중급유기의 적정 대수를 산정하고자 하였다. 시뮬레이션을 구현할 때 실제 대한민국 공군에서 운용하고 있는 항공기의 제원을 입력하여 시뮬레이션의 신뢰성을 높였다. 적정 대수를 산정하기 위한 최적화 툴로써 본 연구에서 사용한 시뮬레이션 툴에 내장되어 있는 OptQuest를 사용하였고 적정 대수 산정결과는 4대이다.

• 산업경영시스템학회지
• /
• 제43권4호
• /
• pp.116-122
• /
• 2020

Human and material resource planning is one representative example of Operations Research. Resource planning is important not only in civilian settings but also in military ones. In the Air Force, flight scheduling is one of the primary issues that must be addressed by the personnel who are connected to flight missions. However, although the topic is of great importance, relatively few studies have attempted to resolve the problem on a scientific basis. Each flight squadron has its own scheduling officers who manually draw up the flight schedules each day. While mistakes may not occur while drafting schedules, officers may experience difficulties in systematically adjusting to them. To increase efficiency in this context, this study proposes a mathematical model based on a binary variable. This model automatically drafts flight schedules considering pilot's mission efficiency. Furthermore, it also recommends that schedules be drawn up monthly and updated weekly, rather than being drafted from scratch each day. This will enable easier control when taking the various relevant factors into account. The model incorporates several parameters, such as matching of the main pilots and co-pilots, turn around time, availability of pilots and aircraft, monthly requirements of each flight mission, and maximum/minimum number of sorties that would be flown per week. The optimal solution to this model demonstrated an average improvement of nearly 47% compared with other feasible solutions.

• 한국군사과학기술학회지
• /
• 제25권1호
• /
• pp.9-22
• /
• 2022

A fighter performing a reconnaissance mission is equipped with a pod that drives optical/infrared sensors for acquiring and identifying target information on the lower part of the fuselage. Due to the nature of the reconnaissance mission, the fighter performs high speed evasive maneuvers, and the resulting load should be considered importantly for the development of the pod. This paper concerns a numerical investigation into the inertial and aerodynamic loads of the airborne pod of high performance aircrafts. For the aerodynamic load analysis, the pylon and pod shapes are added to the fighter 3D model, and the commercial software was used for static and dynamic analysis. Considering the practical mission conditions, the common/extreme conditions were established respectively in the static and dynamic situations of pods and the driving torque could be tripled under dynamic conditions. In the analysis of inertia load, a 3-DOF model considering roll and turning maneuvers was derived by the Lagrangian method, and then the numerical integration method was applied to the analysis. As a results, it was conformed that the inertia load was generally induced at a low level compared to the aerodynamic load, but depending on the unbalance mass condition of the pod, the inertia load cannot be negligible.

• Corrosion Science and Technology
• /
• 제22권3호
• /
• pp.201-213
• /
• 2023

Corrosion management of an aircraft and its engine relies on rinsing and cleaning using tap water. Few studies have reported effects of tap water species on corrosion behaviors of structural materials. In this study, a series of experiments were conducted based on the design of experiment. Solutions with different levels of chloride and sulfate ions were prepared using a full factorial design. Two structural materials (aluminum alloy and steel) were used for an alternate immersion test. Weight loss was then measured. In addition, a silver specimen was utilized as a sensor for chloride deposition measurement. The silver specimen was examined using the electrochemical reduction method, XPS, and SEM-EDS. Surface analysis revealed that levels of chloride and sulfate ions were sufficient for the formation of silver chloride and silver surface. Statistical analysis of weight loss and chloride deposition rate showed significant differences in measured values. Concentration of chloride ions greatly affected corrosion behaviors of structural materials. Sulfate ion hindered the adsorption reaction. These results emphasize the importance of controlling ion concentration of tap water used for cleaning and rinsing an aircraft.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2022년도 추계학술대회
• /
• pp.556-558
• /
• 2022

본 논문에서는 인공지능 알고리즘을 운용할 수 있는 고성능 소형 컴퓨터인 젯슨 나노를 기반으로 차량 추적 기능을 가진 캔위성 시스템을 제안한다. 캔위성 시스템은 캔위성과 지상국으로 구성되며, 캔위성은 대기권 내에서 낙하하며 장착된 센서를 통해 얻은 데이터를 무선통신을 이용해 지상국으로 전송한다. 기존 캔위성은 단순히 수집된 정보를 지상국에 전송하는 임무로 제한되며, 제한된 낙하 시간과 무선통신의 대역폭 제한으로 효율적인 임무 수행에는 한계가 있었다. 본 논문에서 제안하는 젯슨 나노 기반의 캔위성은 사전에 학습된 신경망 모델을 이용하여 공중에서 촬영한 영상에서 차량의 위치를 실시간으로 탐지 후, 2축 모터를 이용하여 카메라를 움직여 차량을 추적한다.

• 공학교육연구
• /
• 제24권5호
• /
• pp.46-52
• /
• 2021

This study introduces the development and application of instructional materials for a micro-UAV (unmanned aerial vehicle) design and manufacturing program in university education for freshman/sophomore students. The ADDIE methodology was applied to the development of educational materials, which consist of 15 lessons including the aircraft design theory, 3D CAD modeling, 3D printing production, and UAV flight control. The validity of the program was evaluated with 8 expert panels. A total of 82 participants from engineering and social science grouped the 16 teams for the creative UAV wing design and cooperative interactions. The results of overall program satisfaction survey was measured highly as the average 4.54 (out of 5), so that the students were content with the professional engineering knowledge, 3D digital tools, and the opportunity to design and manufacture airplanes on their own. In conclusion, it can be confirmed that the developed program is effective for UAV education for junior level college student.

• 한국항공운항학회지
• /
• 제29권2호
• /
• pp.36-46
• /
• 2021

The purpose of this study is to ensure safety by proactively identifying hazards that could be derived from changes in mission form and environment as the advanced aircraft such as F-35A stealth fighter, KC-330 Multi-role transport and tanker, RQ-4B high altitude unmanned reconnaissance aircraft, etc are introduced that the Republic of Korea Air Force(ROKAF) has never been operated so far. To this end, the safety management methods based on proactive and predictive approaches used in advanced countries(US Air Force, UK Royal Air Force, Royal Australian Air Force) operating aircraft types same or similar things being newly powered by the ROKAF were reviewed. In addition, the direction for improvement of the safety management methods operating in the ROKAF and the measures necessary for establishment of the new safety management techniques to be applied were suggested.