Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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KC-100 Full-scale Airframe Static Test

KC-100 전기체 정적 구조시험

  • Shim, Jae-Yeul (Aeronautics Technology Division, Korea Aerospace Research Institute) ;
  • Jung, Keunwan (Aeronautics Technology Division, Korea Aerospace Research Institute) ;
  • Lee, Hanyong (Aeronautics Technology Division, Korea Aerospace Research Institute) ;
  • Lee, Sang Keun (Aeronautics Technology Division, Korea Aerospace Research Institute) ;
  • Hwang, Gui-Chul (Aeronautics Technology Division, Korea Aerospace Research Institute) ;
  • Ahn, Seokmin (Aeronautics Technology Division, Korea Aerospace Research Institute)
  • Received : 2013.09.02
  • Accepted : 2013.12.27
  • Published : 2014.01.01
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Abstract

A full-scale static test for a composite structure small aircraft (KC-100) was conducted in the KARI. The test includes 15 full-scale test and 7 local test conditions. Test requirements with test schedule, test article with dummy structures, test load generation, test system, and equipment are introduced for the test. Test load data of the 1st test condition(U1) was analyzed to evaluate an accuracy of load control for the test. The analysis results show that load data obtained during test were within tolerance of Static Null Pacing Error(SNPE) and the error value of load control was 8.6N. The error of load controls for the full-scale static test using dozens of actuators was calculated by a method suggested by authors. Test data for all other test conditions is also shown in this paper. Finally, reactions measured from restraint system of the U1 test condition show that the reaction changes as load increment. The factors which may change the change of reactions for a full-scale static test are introduced in this study.

항우연에서는 복합재 소형항공기(KC-100)에 대하여 15가지 전기체 시험조건과 7개의 국부적 시험조건들에 대한 전기체 정적구조시험을 수행하였다. 시험요구도, 시험일정, 시험체 및 더미구조, 시험하중산출, 시험장치, 시험장비 등을 소개하였다. 수십개의 제어채널을 사용하는 전기체 구조시험의 하중제어의 정확도를 살펴보기 위하여 U1의 시험데이터를 분석하였다. 분석결과 각 채널별 데이터 획득된 하중값은 허용오차인 SNPE(Static null pacing error)값 이내에서 잘 유지하고 있음을 보였고 본 논문의 저자가 제안한 시험의 하중제어오차 크기 정의방법을 적용한 결과 U1 시험의 하중제어 오차값이 8.6N 이었고 나머지 전기체 시험조건들에 대한 시험데이터를 분석한 결과도 보였다. 마지막으로 U1시험에서 자세제어장치에서 측정된 반력들이 시험하중 증가와 함께 변하는 것을 보였고 전기체 구조시험에서 반력변화 발생의 요인들에 대하여 기술하였다.

Keywords

References

  1. Jae-yeul Shim, Gui-Chul Hwang, Dong-Chul Chae, Kyoung-Jin Sung, Sung-Chan Kim, In-Hee Hwang, "Ultimate Load Test of Full-scale Airframe of Advanced Jet Trainer", Korean Society for Aviation and Aeronautics Fall Conference 2004, pp.161-166.
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  5. Tae-Uk Kim, Sung Chan Kim, Jae-yeul Shim, In Hee Hwang, 2002, "Development of Test Loads and Loading System", 2002 KSME Fall Annual Meeting, pp..523-527.
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