@techreport{oai:jaxa.repo.nii.ac.jp:00041118, author = {小池, 陽 and 細江, 信幸 and 小国, 保男 and 鈴木, 弘一 and 三輪, 等 and Koike, Akira and Hosoe, Nobuyuki and Oguni, Yasuo and Suzuki, Koichi and Miwa, Hitoshi}, month = {Dec}, note = {航空宇宙技術研究所(NAL)遷音速風洞は1960年に建設され、その老朽化部分の大幅な修理が1985年から開始された。この修理の中で新らしく再製作された偏流翼について記述する。偏流翼の翼厚は初め6mmで、疲労による亀裂の進行を防ぐため1968年に9mmに増加された。しかし亀裂の発生は止まなかったので、今回の改修では翼厚は12mmに増加された。偏流翼に当る流れの空気力や変動圧力により偏流翼内に生ずる応力を計測する試験を製作の前と後に実施した。その結果を、応力と圧力との相関も含めて示す。, National Aerospace Laboratory (NAL) transonic wind tunnel was constructed in 1960, and in-depth repairs of its superannuated parts was begun in 1985. In this paper, the newly reconstructed turning vanes are described. The thickness of the turning vanes was 6 mm at first and it was increased to 9 mm in 1968 to prevent cracks caused by fatigue from developing. Despite of this increase in thickness, cracks were observed again. With the present reconstruction, the thickness was increased to 12 mm. Tests designed to measure the stresses within the vanes by aerodynamic force and pressure fluctuations of incoming flow were conducted before and after reconstruction. Results from the measurements are presented including a correlation analysis between the stress and the pressure fluctuation., 資料番号: AA0004139000, レポート番号: NAL TM-651}, title = {航技研遷音速風洞測定胴改修 その1:第1屈曲部偏流翼改修と応力測定}, year = {1992} }