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一、前言我们在汽轮机叶片微动疲劳损坏的研究工作中,发现微动磨损和叶片振动特性之间存在着某种规律性。利用这种关系可以判断引起叶片损坏的振动方向和振动下移的程度,找出叶栅损坏的原因。这对于研究高温段的短叶片的静态或动态特性具有一定的意义。本文将就戚
I. Preface We have found that there is some regularity between the fretting wear and the vane vibration characteristics in the research work on the fretting fatigue damage of steam turbine blades. Use this relationship can determine the direction of vibration caused by blade damage and the degree of downward movement to find out the cause of the cascade damage. This is of great significance for studying the static or dynamic characteristics of short blades at high temperature. This article will be Qi