국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Performance Test of Flutter Emergency Stopper for Transonic Wind Tunnel (Part 2) The III Cart Device
저자	Asao HANZAWA, Yasuo OGUNI, Masamitsu　SUZUKI, Toshio KARASAWA, Yukio KOMATSU(NAL), Yasukatsu ANDO(JAST)
Keyword	Flutter suppression device; transonic wind tunnel; flutter model test
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltm0000767.pdf?id=NALTM0000767
보고서번호	NAL-TM-767
발행년도	2002-9
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	A flutter emergency stopper was installed on the III cart device of the 2m×2m transonic wind tunnel at the National Aerospace Laboratory in 1993. Wind tunnel testing with the device revealed that while the decline in Mach number obtained when the flutter stopper opens coincided with the design value, pressure fluctuation did occur. To eliminate this pressure fluctuation, improvements were made to the flutter stopper plate and opening angle . Subsequent test results confirmed the effectiveness and safety of the flutter-suppressing device. This report presents the improvements made to the flutter-suppressing device, the tests conducted and test results.