• Title/Summary/Keyword: 우주비행

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A Study on loggings of flight time(Focusing on the record of instrument flight) (비행시간 산정에 관한 연구(계기비행 기록을 중심으로))

  • Hwang, Ho-Won;Noh, Yo-Sup
    • The Korean Journal of Air & Space Law and Policy
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    • v.20 no.2
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    • pp.253-276
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    • 2005
  • A pilot logbook is an essential data for proving pilot's flight experience. the reason for maintaining this information is to fulfill the requirement for pilot certificates, manage internationally shared career placement. this study focuses on the instrument flight related items among other flight time items which are included in a pilot logbook. By comparing the way of flight time logging among Korean Aviation Law, Federal Aviation Regulation and Joint Aviation Requirements, this study concludes intensively how to define items for flight time, to amend the definition and to apply the policy in Korea with respect to the pilot logbook.

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A Study on ADS-33E with Application to the Assessment of Handling Quality for Unmanned Rotorcraft (회전익 무인항공기의 비행안정성 규명을 위한ADS-33E 적용기법 연구)

  • Jeong, Hwan-Ho;Suk, Jin-Young;Kim, Byoung-Su;Lee, Sang-Kee
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.40 no.3
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    • pp.243-250
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    • 2012
  • In this paper, a systematic consequence of evaluation method, procedure, and flight data analysis is investigated for application of ADS-33E-PRF to UAV. And it is applied to unmanned rotorcraft for evaluation. CNUHELI-020, which is developed in Chungnam National University, is used for assessment of handling quality: decoupled longitudinal and lateral/directional model were used to assess handling qualities. Evaluation flight maneuvers are categorized as hover/low-speed requirements, small-amplitude attitude change, and moderate-amplitude attitude change requirements.

한국항공우주연구원 공기역학분야 연구 소개

  • 이장연;김인선
    • Journal of computational fluids engineering
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    • v.7 no.3
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    • pp.60-65
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    • 2002
  • 한국항공우주연구원의 공기역학 분야 연구는 주로 항공기 및 발사체 개발에 관련되어있으며 형상 설계로부터 유동해석, 성능해석 및 비행시험에 이르기까지 개발사업의 중요한 부분을 담당하고 있다. 본 기고에서는 스마트 무인항공기와 성층권 비행선, 그리고 3단형과학로켓(KSR-Ⅲ) 등 주요 국가 항공우주 연구개발사업과 관련한 항공우주연구원 공기역학분야의 연구소개 및 연구개발 추진방향을 기술하였다.

항공우주산업에서의 소음진동기술 응용

  • 이수갑;정철웅
    • Journal of KSNVE
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    • v.14 no.4
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    • pp.16-28
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    • 2004
  • 항공우주산업은 항공기나 우주비행체를 생산하는 모든 관련 산업으로 정의할 수 있다. 소음진동측면에서 보면 항공기는 운송수단의 하나로 사용되므로 소음 관련 규제 법률에 따라서 관련기술의 발전이 이루어져 왔다고 볼 수 있으나 우주비행체는 운행공간을 고려 할 때 소음진동기술이 작동효율성 (연소불안정성, 공진파괴 등)을 향상시키기 위한 기술로 사용되어 왔고 그 범위도 매우 제한되어 있다. 따라서 소음진동기술은 주로 항공기 분야에서 많은 응용을 구하고 있는 실정이다. (중략)

Tracking Performance Enhancement of Space Launch Vehicle Based on Adaptive Kalman Filter (적응 칼만필터에 기반한 우주발사체 추적 성능 개선)

  • Han, Yoo Soo;Song, Ha Ryong;Lee, In Soo
    • Journal of Korea Society of Industrial Information Systems
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    • v.22 no.5
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    • pp.39-49
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    • 2017
  • A Space Launch Vehicle (SLV) for Launching Satellites Consists of Multi-stage Rockets for the Purpose of Efficient Flight and Accomplishes the Launch Mission through Flight Events such as Stage Separation, Engine Start and Stop. In this Process, the SLV is Supposed to Undergo the Processes of the Powered Flight Section in which the Engine Generates Thrust and the Ballistic Flight Section in which there is no Thrust Repeatedly. Because it is Difficult to Express these Flight Characteristics of the SLV as a Single Dynamics Model, much Research on Tracking Algorithms using Multiple Models has been Undertaken. In case of using the Multiple Model Tracking Algorithm, it is Expected to Improve the Tracking Performance of the SLV. However, it is Difficult to Select Proper Dynamics Models to be used and the Calculation Amount Increases due to the use of Multiple Models. In this Paper, we Propose a Method to Track the SLV with Diverse Flight Characteristics Efficiently by only Two Kalman Filters using Constant Acceleration Model and Adaptive Singer Model.

Establishment of Flight Simulation Environment for Evaluation of Helicopter Flying Quality (헬리콥터 비행성 평가를 위한 모의비행시험 환경의 구현)

  • Han, Dong-Ju;Lee, Sang-Haeng
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.35 no.9
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    • pp.783-791
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    • 2007
  • For an access to specified helicopter simulator qualification's level C or FTD(Flight Training Device) level 5 of FAA(Federal Aviation Administration) AC(Advisory Circular) 120-63, the mathematical model of a single rotor helicopter flight dynamics is investigated. From the rotorcraft simulation model validated by evaluation of its flight performance, the feasibility of the flight dynamic model that is selected for its effectiveness has been proved. Thereby the simulation environment for evaluation of helicopter flying quality is established with the development of FTD for training and testing the flight performance.

FLIGHT SOFTWARE DEVELOPMENT FOR HAUSAT-2 ON-BOARD COMPUTER (HAUSAT-2 비행소프트웨어 개발)

  • Shim Chang-Hwan;Ryu Jung-Hwan;Choi Young-Hoon;Chang Young-Keun
    • Bulletin of the Korean Space Science Society
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    • 2006.04a
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    • pp.117-120
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    • 2006
  • HAUSAT-2 flight software was developed by first analyzing the satellite requirements, and incorporating the results into the software. Coding and compiling is done after the software is completed, then individual and integrated tests are performed in order to verify the flight software algorithm. Currently, HAUSAT-2 flight software integrated test has been performed and the test result is serving as a basis for code modification nd additional developments. This paper describes the architecture, development process, and development environment of HAUSAT-2 flight software.

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Fabrication and Flight Test of Human Powered Aircraft (인간동력항공기 제작 및 비행 시험)

  • Kwon, Kijung;Ahan, Seokmin
    • Aerospace Engineering and Technology
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    • v.12 no.2
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    • pp.186-192
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    • 2013
  • Fabrication of human powered aircraft and flight test procedure for pilot training are included in this paper. To meet the weight requirement, very light materials such as carbon fiber and PVC foam are used and the final weight was 41.5kg. Ninety two times of flight test were done at Goheung Aviation Test Center from August to September 2012. When KARI were lack of know-how about human powered aircraft, damages on the aircraft were very frequent. After knowing how to fly and to control, one of two pilots was finally successful in flying further to 240m in the Human Powered Aircraft Contest.