動翼ダブテール部のすべり挙動とフレッティング疲労

概要

論文の詳細を見る
Slipping behavior and deformation of a disk/blade dovetail assembly are analysed using a finite element method, a program developed for these contact problems. To analyse the problems with high accuracy it is necessary to use an exact frictional coefficient. The frictional coefficient is obtained through a pull-bend combined loading test. The blade damping capacity of the disk/blade dovetail assembly is calculated taking into account the slipping behavior. The calculated results coincide well with those of experimental results. The fretting fatigue strength is also estimated based on the calculated results of stress distribution on the contact surface. Finally, these calculated results are confirmed by the measurement of dovetail slot stresses under actual operating loading conditions.
一般社団法人日本機械学会の論文
1986-03-25