국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	EVALUATION OF VARIOUS THRUST CALCULATION TECHNIQUES ON AN F404 ENGINE
저자	Ronald J. Ray
Keyword	Calibrating; Engine tests; Flight tests; Performance prediction; Real time operation; Thrust
URL	http://www.dfrc.nasa.gov/DTRS/1990/PDF/H-1505.pdf
보고서번호	NASA-TP-3001
발행년도	1990
출처	NASA Dryden Flight Research Center
ABSTRACT	In support of performance testing of the X-29A aircraft at the NASA-Ames, various thrust calculation techniques were developed and evaluated for use on the F404-GE-400 engine. The engine was thrust calibrated at NASA-Lewis. Results from these tests were used to correct the manufacturerchr(39)s in-flight thrust program to more accurately calculate thrust for the specific test engine. Data from these tests were also used to develop an independent, simplified thrust calculation technique for real-time thrust calculation. Comparisons were also made to thrust values predicted by the engine specification model. Results indicate uninstalled gross thrust accuracies on the order of 1 to 4 percent for the various in-flight thrust methods. The various thrust calculations are described and their usage, uncertainty, and measured accuracies are explained. In addition, the advantages of a real-time thrust algorithm for flight test use and the importance of an accurate thrust calculation to the aircraft performance analysis are described. Finally, actual data obtained from flight test are presented.