국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	METHOD FOR EXPERIMENTAL DETERMINATION OF FLUTTER SPEED BY PARAMETER IDENTIFICATION
저자	E. Nissim and Glenn B. Gilyard
Keyword	Aeroelasticity; Dynamic pressure; Flight tests; Flutter; Parameter identification.
URL	http://www.dfrc.nasa.gov/DTRS/1989/PDF/H-1510.pdf
보고서번호	NASA-TP-2923
발행년도	1989
출처	NASA Dryden Flight Research Center
ABSTRACT	A method for flight flutter testing is proposed which enables one to determine the flutter dynamic pressure from flights flown far below the flutter dynamic pressure. The method is based on the identification of the coefficients of the equations of motion at low dynamic pressures, followed by the solution of these equations to compute the flutter dynamic pressure. The initial results of simulated data reported in the present work indicate that the method can accurately predict the flutter dynamic pressure, as described. If no insurmountable difficulties arise in the implementation of this method, it may significantly improve the procedures for flight flutter testing.