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3D 프린팅 교육 프로그램을 위한 수업자료 개발과 적용
이영건(Lee, Younggun),이상현(Lee, Sanghyun),유승훈(Yoo, Seunghoon),김시태(Kim, Sitae) 한국공학교육학회 2021 공학교육연구 Vol.24 No.3
This paper deals with the development and application of a 3D printing education program implemented to cultivate creative fusion-type talents required by the 4th Industrial Revolution. Specifically, the entire process developed by applying the ADDIE program development model, from 3D modeling to post-processing of printed materials, was performed individually and for each team for about 200 second-year college students for two weeks. Through this program, students develop the basic ability to apply 3D printing to the learning curriculum, the ability to solve problems through cooperative interactions between team members, and convergence thinking ability by collaborating within the team by students from various major fields. They are proved by analyzing an education satisfaction survey conducted after application of the program. In conclusion, the program of this paper presents a methodology for effective 3D printing education in universities.
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창의공학설계 및 실습 수업을 위한 아두이노 기반 교육용 캔위성 개발 연구
이영건(Lee, Younggun),이상현(Lee, Sanghyun),김종범(Kim, Jongbum),김송현(Kim, Songhyon),유승훈(Yoo, Seunghoon) 한국공학교육학회 2021 공학교육연구 Vol.24 No.5
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.
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항공기 비행특성 확인을 위한 다자유도 가상비행 및 자유비행 풍동실험 시스템 개발
이재인(Jaein Lee),조동현(Donghyun Cho),이영건(Younggun Lee),이예빈(Yebin Lee),김광수(Kwangsoo Kim),김종범(Jongbum Kim) 한국항공우주학회 2023 韓國航空宇宙學會誌 Vol.51 No.3
항공기 개발 과정에서 비행제어시스템(FCS, Flight Control System)을 개발하고 검증하는 것은 매우 중요하며 장기간에 걸쳐 진행된다. 특히 항공기가 불안정한 특성이 발생될 수 있는 고받음각 상황에서 조종상실과 회복 과정 중 비행제어시스템의 정상적인 동작 여부의 검증은 비행시험 단계에서 비행시험의 위험성과 비용을 크게 감소시킬 수 있다. 그러나 비행시험 없이 실제 비행환경을 모사하여 동적 실험을 수행하고 비행제어시스템을 검증할 수 있는 시스템을 구성하는 것은 매우 어렵다. 공군사관학교 아음속 풍동실험실에서는 실제 비행환경과 매우 유사한 환경에서 동적특성을 파악할 수 있는 풍동실험 시스템을 구축하였다. 3자유도 짐벌과 리그를 개발하여 다자유도 가상비행(VFT, Virtual Flight Test) 풍동실험을 가능하게 하였고, 기존 폐회로 풍동 측정부를 개방형으로 개조하여 자유비행 풍동실험을 수행하였으며, 이를 통해 항공기 비행특성을 확인하고 비행제어시스템을 검증하였다. Developing and verifying the Flight Control System(FCS) in the aircraft development process is imperative and ongoing over a long period of time. Especially at a high angle of attack where unstable flight characteristic is likely to be shown, the verification of the FCS performance under the loss of control and recovery process can significantly reduce the risk and cost of flight testing during the flight test stage. However, developing a system capable of conducting dynamic tests and evaluating the FCS performance under simulated flight environments is challenging without a flight test. The Subsonic Wind Tunnel Laboratory of the Korea Air Force Academy established a wind tunnel test system capable of investigating dynamic characteristics in an environment similar to the actual flight environment. A three-degree of freedom gimbal and jig was developed to enable a multi-degree Virtual Flight Testing(VFT), the existing closed-circuit wind tunnel test section was converted into an open-type test section to conduct a free-flight wind tunnel test, and the aircraft flight characteristics were investigated and FCS was verified.
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