• Title/Summary/Keyword: full-scale airframe structural test

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A Study on Calculation of Test Load for Full-Scale Airframe Structural Test of Composite Aircraft (복합재 항공기 전기체 구조시험 시험하중 산출 방법 연구)

  • Choi, Ik-Hyeon;Ahn, Seok-Min
    • Aerospace Engineering and Technology
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    • v.10 no.2
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    • pp.146-153
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    • 2011
  • Some methods of calculation of test load value from design load data were investigated which will be applied at strap installed full-scale airframe of composite aircraft. These methods were applied to left wing of KC-100 composite aircraft and the calculated test load values were compared with each others. Generally since test load values are differently calculated according to each aircraft type and position of straps, all calculation methods mentioned at this study need to be applied and compared to each aircraft. Finally the most appropriate method needs to be selected.

전기체 구조시험을 위한 고성능 과하중 방지 모듈 개발

  • Chae, Dong-Chul;Kim, Sung-Chan;Hwang, Gui-Chul;Sung, Kyung-Jin;Shim, Jae-Yeul;Hwang, In-Hee
    • Aerospace Engineering and Technology
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    • v.3 no.2
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    • pp.208-216
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    • 2004
  • Advanced overload protection module for full scale airframe structural test was developed by improving the existing overload protection module. When performing the full scale airframe structural test, overload can be applied to the test article due to unexpected situations such as system shutdown, test article failure, and deficiency of design strength. Therefore, the overload protection module is needed for protecting the test article in unexpected overload situations. In this paper, the function of the existing overload protection module was summarized for each component and the problems encountered when using it in structural test were analyzed in addition, the development of advanced overload protection module was described.

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A Study on the Test Load Simulation Technique for T-50 Full Scale Durability Test (T-50 전기체 내구성시험 시험하중 설계기술 연구)

  • Jung, Jae-Kwon;Lee, Kee-Bhum;Yang, Myung-Seog;Shul, Chang-Won
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.32 no.3
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    • pp.82-87
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    • 2004
  • The general requirements to achieve the structural integrity of the airframe are described in the military specification, MIL-HDBK-1530. One of these requirements is the durability and damage tolerance of the airframe, which should be shown through the analysis and test based on the related specifications. This paper describes the full scale durability test load simulation to evaluate the structural safety and durability of the advanced trainer, T-50. The test load simulation was performed according to the procedure in the military specification and the KAF contract requirements. The durability test design technique which involve the floating test set-up, the optimal test load simulation method, and the 6-DOF test article balance method to secure the real flight conditions as many as possible. It was confirmed that this method will be available in a similar full-scale airframe structural test in future.

Development of Full-scale Airframe Durability Test Technique (항공기 전기체 내구성시험 기법 개발)

  • Shul, Chang-Won;Yang, Myung-Seog;Lee, Kee-Bhum;Jung, Jae-Kwon;Kang, Hui-Won;Lee, Kyung-Yong
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.32 no.6
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    • pp.117-125
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    • 2004
  • This paper describes the test technique for the full-scale airframe durability test according to the military handbook(MIL-HDBK-1530) and ASIP(Aircraft Structure Integrity Program) to evaluate structural integrity and to obtain basic data for IPA(Initial Production Approval) of the Korean advanced trainer(T-50). This paper covers the full-scale airframe floating setup technique, the optimized test load simulation method, test rig design technique, test setup design and installation techniques, test safety device design and operation technique, and durability test results. As 1st life durability test was successfully performed, it was confirmed that this method is available in a full-scale airframe structural test.