超音速パラシュートのキャノピー形状による振動特性への影響（Ⅰ）—M_∞ = 3.0における評価—

抄録

Four types of flexible parachute in different shape (Hemisphere, Disk Gap Band (DGB), Conical Gap Band (CGB), 10Slit) are tested in the JAXA-ISAS supersonic wind tunnel. Oscillation characteristics of the swinging motion and the canopy deformation are investigated. As a result, the canopy deformation, which was evaluated by using the shape-complexity, could be characterized by the Gamma-type probability-distribution-functions (pdfs), while the amplitude of swinging oscillation of the canopy can be characterized by the Gaussian-type pdfs. It was found that the CGB-shape features the largest canopy deformation and the lowest oscillation amplitude among tested shapes.