タービン動翼に加わる流体励振力に関する研究 : 第1報, 実験方法と結果

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. The 1st report mainly shows experimental equipments, procedure and results, and it is clarified that unsteady forces are mainly dependent with the reduced frequency.
一般社団法人日本機械学会の論文
1990-08-25