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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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A Study on the Weight Tare of an Internal Balance Including Translation of the Initial Loads

초기하중 전이를 고려한 내장형 밸런스의 WEIGHT TARE 연구

  • Published : 2003.11.01
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Abstract

In this paper, the weight tare calculation method including translation of initial loads is proposed to remove the internal balance component readings due to model weight. If the balance calibration equations are applied directly to the wind-on data without taking account these initial loads, then incorrect data will be obtained for all wind-on data calculations. The calculated model weights were compared with the actual model weights to verify the reliability of the proposed calculation technique. Also, discussions of the effects of the initial loads are given.

본 논문에서는 내장형 밸런스에 가해지는 모형중량성분의 보상을 위해 초기하중의 전이를 고려한 weight tare 계산방안을 제시하였다. 만약, 이러한 초기하중의 영향을 고려하지 않고 공력하중 데이터에 밸런스 교정관계식을 그대로 적용한다면 공력하중 전체에 걸쳐서 오차가 발생하게 된다. 본 계산방안의 신뢰성 검증을 위해 계산중량과 실측중량간의 비교 평가와 초기하중의 영향에 대한 평가를 수행하였다.

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References

  1. Shors, D. G., "PSWT Data Reduction Procedures and Equations for Remote - Roll Pod", MDC Memo No. 3505, Sep. 1972.
  2. Stone, J. G., "MCAIR Polysonic Wind Tunnel Data Reduction Procedures and Equations", MDC Report A0311, Sep. 1969.
  3. Barlow, J. B., Rae, William H. and Pope, Alan, "Low-Speed Wind Tunnel Testing", 3rd ed., 1999, Chapter 7.
  4. Fox, C. H. Jr, "Real Time Data Reduction Capabilities at the Langley 7- by 10-Foot High Speed Tunnel", NASA TM-78801, 1980.
  5. Quinto, P. F. and Orie, N. M. "Langley 14-by 22-Foot Subsonic Tunnel Test Engineer's Data Acquisition and Reduction Manual", NASA-TM-4563, 1994.
  6. Smith, D. L., "An Efficient Algorithm using Matrix Methods to Solve Wind Tunnel Force-Balance Equations", NASA TN D-6860, 1972.
  7. MicroCraft, "KTX-2 Model Force & Moment Test Information", Unpublished, 1994.
  8. AIAA, "Recommended Practice for Atmospheric and Space Flight Vehicle Coordinate Systems", ANSI/AIAA R-004, 1992.
  9. Steinle, F. and Stanewsky, E., "Wind Tunnel Flow Quality and Data Accuracy Requirements", AGARD Advisory Report No. 184, 1982.