タービン動翼に加わる流体励振力に関する研究 : 第2報, 実験に基づく励振力評価法

概要

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Unsteady aerodynamic forces on a turbine cascade blade due to a sinusoidal gust have been studied experimentally. Turbine blades having large camber, large thickness and large turning angle, it is difficult to obtain unsteady forces theoretically. In spite of many theoretical investigations having been carried out, there are few results giving adequate accuracy. Thus, in this study, systematic experiments have been carried out in order to obtain unsteady forces acting on gas turbine cascade blades, and an evaluation method for blade-exciting forces has been deduced by using experimental data. In the 2nd report, experimental data are discussed in detail and the evaluation method is described so that the exciting forces can be obtained by using the reduced frequency and cascade conditions.
一般社団法人日本機械学会の論文
1990-08-25