TY - JOUR
T1 - Unsteady Lifting Surface Theory Based on Double Linearization Concept for Supersonic Through-Flow Fan
AU - Hanada, Toshiya
AU - Namba, Masanobu
PY - 1994
Y1 - 1994
N2 - A full three-dimensional lifting surface theory based on the double linearization concept is developed for a rotating annular cascade model operating at axial supersonic velocity. It is assumed that each blade vibrates with infinitesimal displacement amplitude under small mean loading. Vibration modes normal and parallel to the blade chord are considered. Numerical results are presented to investigate the mean loading effects on the aerodynamic instability of the blade motion. It is found that the bending motion can be unstable due to the presence of mean loading. Some numerical results compared with strip theory predictions demonstrate significant three-dimensional effects on the unsteady aerodynamic force.
AB - A full three-dimensional lifting surface theory based on the double linearization concept is developed for a rotating annular cascade model operating at axial supersonic velocity. It is assumed that each blade vibrates with infinitesimal displacement amplitude under small mean loading. Vibration modes normal and parallel to the blade chord are considered. Numerical results are presented to investigate the mean loading effects on the aerodynamic instability of the blade motion. It is found that the bending motion can be unstable due to the presence of mean loading. Some numerical results compared with strip theory predictions demonstrate significant three-dimensional effects on the unsteady aerodynamic force.
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U2 - 10.1299/kikaib.60.161
DO - 10.1299/kikaib.60.161
M3 - Article
AN - SCOPUS:0028268858
VL - 60
SP - 161
EP - 168
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 569
ER -