シールピンを利用した摩擦型ダンパ翼の応答解析

概要

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Recently, in order to improve power plant thermal efficiency, the turbine blade, which is the most important element of the power plant, has been used under severe conditions of high loading. Therefore, for the purpose of increasing plant reliability, the blade with friction dampers has been used. This paper presents the analysis method to predict damping characteristics of the seal pin type damper blades by applying the substructure synthesis method and the harmonic balance method to the bladed disk. The model test is carried out and the experimental data are compared with the numerical results in order to verify the validity of the analytical method proposed here. Numerical results show good agreement with the experimental data and it is shown that the damping characteristics of seal pin type damper blades can be controlled by altering the weight of pin and the grooveangie.
社団法人日本機械学会の論文
1999-05-25