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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Aerospace System Engineering
Journal Basic Information
Journal DOI :
The Society for Aerospace System Engineering
Editor in Chief :
Volume & Issues
Volume 10, Issue 4 - Dec 2016
Volume 10, Issue 3 - Sep 2016
Volume 10, Issue 2 - Jun 2016
Volume 10, Issue 1 - Mar 2016
Selecting the target year
Thermal Analysis of APD Electronics for Activation of a Spaceborne X-band 2-axis Antenna
Ha, Heon-Woo ; Kang, Soo-Jin ; Kim, Tae-Hong ; Oh, Hyun-Ung ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 1~6
DOI : 10.20910/JASE.2016.10.2.1
The thermal analysis of electronic equipment is required to predict the reliability of electronic equipment being loaded on a satellite. The transient heat transfer of electronic equipment that was developed recently has been generated using a large-scale integration circuit. If there is a transient heat transfer between EEE(Electric, Electronic and Electro mechanical) parts, it may lead to failure the satellite mission. In this study, we performed the thermal design and analysis for reliability of APD(Antenna Pointing Driver) electronics for activation of a spaceborne X-band 2-axis antenna. The EEE parts were designed using a thermal mathematical model without the thermal mitigation element. In addition, thermal analysis was performed based on the worst case for verifying the reliability of EEE parts. For the thermal analysis results, the thermal stability of electronic equipment has been demonstrated by satisfying the de-rating junction temperature.
Certification Criteria and Safety Assessment for High Altitude Long Endurance Unmanned Aerial Vehicle
Ko, Joon Soo ; Kim, Kyungmok ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 7~13
DOI : 10.20910/JASE.2016.10.2.7
Multi disciplinary approach for aerodynamics, structure, propulsion, and flight control system is necessary to develop High Altitude Long Endurance Unmanned Aerial Vehicles (HALE UAV). Various HALE UAV development trends are surveyed to understand their operational requirements. Separating the UAV Take Off Weight by 150kg, Airworthiness implementation direction for HALE UAV is studied under the current Airworthiness regulations. NATO STANAG 4671 and STANAG 4703 Airworthiness certification criteria are analyzed, and their applicability was proposed for future HALE UAV development. In addition, minimization of the risk for UAV is studied by considering probability of cumulative catastrophic failure for HALE UAV. This Hazard Risk Index can support the future UAV Airworthiness Certification Criteria.
Development and Flight Test of Educational Water Rocket CULV-1 for Implementation of Launch Vehicle Separation Sequence and Imaging Data Acquisition
Lee, Myeongjae ; Park, Taeyong ; Kang, Soojin ; Jang, Sueun ; Oh, Hyunung ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 14~21
DOI : 10.20910/JASE.2016.10.2.14
In this study, we proposed a water rocket CULV-1 (Chosun University Launch Vehicle-1). Unlike a conventional water rocket, CULV-1 can perform the booster rocket, fairing, and payload separation like an actual launch vehicle and also the imaging data acquisition. The conceptual and critical design of the proposed CULV-1 have been performed considering the operation characteristics. The verification tests have been performed from subsystem to system level in accordance with the established test specifications and verification procedures. Through the final launch test of the flight model, we have verified the design effectiveness of the proposed separation mechanisms for water rocket applications and the mission requirements of the CULV-1 also have been complied.
Consideration on certification of installation of whole airplane recovery parachute
Kim, Seung-Kyem ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 22~26
DOI : 10.20910/JASE.2016.10.2.22
Whole airplane recovery parachute system(WARPS) is a auxiliary safety system to protect occupants in emergency situation where recovery to normal flight condition is impossible. In this paper, application and certification cases of WARPS for Part 23 small airplane is introduced and considerations in certification of the WARPS installed airplane are provided in terms of performance of parachute, function and operation, loads and strength and protection of occupants.
Comparison of AMO System between Korea and US
Joe, Hyunmyung ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 27~33
DOI : 10.20910/JASE.2016.10.2.27
For the continued airworthiness of aviation products, aviation authority requires that every manufacturer should provide ICA(Instruction of Continued Airworthiness) to their users, and the users should follow it by themselves or using another approved maintenance agent. To reduce the cost and improve performance quality of maintenance activities, lots of users tries to outsource this job. To perform maintenance or repair of other owned air products, an air carrier and aviation maintenance companies should obtain AMO(approval of maintenance organization). It means AMO is a postulation to enter MRO(Maintenance Repair and Overhaul) market. For that, this paper discusses the comparison of requirements and procedures of AMO system between Korea and US to help understand the AMO system, and then, tries to point out what improvement should be made to Korean AMO system to be more effective, efficient and safe.
Development of Shock Test Measurement/Analysis Program for NEXTSat-1
Seong, Tae-hyeon ; Jin, Jaehyun ; Kim, Sang-kyun ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 34~40
DOI : 10.20910/JASE.2016.10.2.34
A satellite is exposed to various impact environment until orbit entry. It is particularly undergoing the biggest impact by pyro shock, which is generated when the launch vehicle stages are separated or the satellite is separated from the launch vehicle. In this paper, due to the fact that the pyro shock is prerequisite for performing the test and verification on the ground, we developed an air-gun type shock tester for NEXTSat-1 shock test at the KAIST SaTReC along with the development of program introduced by LabVIEW software. The program operated in shock tester is consist of data measurement and analysis with the convenient implementation of user interface and its easy modification of the code.
A study on the direct effect of lightning on structures and systems of aircraft
Jeong, Duckyoung ; Yang, Hyundeok ;
Journal of Aerospace System Engineering, volume 10, issue 2, 2016, Pages 41~45
DOI : 10.20910/JASE.2016.10.2.41
Statistical data show that a large aircraft(transport category) is struck by lightning once a year or once per 1,000 ~ 20,000 flight time. The protection design for lightning must be applied to the aircraft because an aircraft is developed on condition that it is absolutely struck by lightning. For the proper protection design, we need to understand direct effect and indirect effect of lightning. This paper described the direct effect of lightning on aircraft`s structures and systems.