蒸気タービン翼の固有振動特性 : 第3報,円板全周連結翼の振動

概要

論文の詳細を見る
To avoid resonance of steam turbine blades during operation, it is necessary that the prediction method for natural frequencies of blades is established. Therefore, the calculation method of the natural frequencies was developed for the structure in which blades on the entire disk circumference was binded. It was found that five natural frequencies was existed within the range below 500 Hz in calculations of natural frequencies of a single blade for a turbine. Noticing the vibration of the direction in which moment of inertia is small at the middle between blade root and blade tip, we can show systematically vibration characteristics for these natural frequencies. Besides, the relation between the natural frequencies of the all banded blades and that of a banded group of several blades and variation of the natural frequency to vary blade dimension are also discussed.
一般社団法人日本機械学会の論文
1984-10-25