摘要
以航空发动机动力涡轮一级带锯齿形叶冠的转子叶片为例,用有限元接触分析方法对装配和工作状态下的叶冠紧度和叶冠接触力、叶身应力进行了计算和分析,着重考察了工作载荷(温度和离心力)对叶冠接触力的影响。分析结果表明,叶冠的紧度由预扭角和工作载荷决定,离心力对紧度的变化起主要作用。
An aeroengine power-turbine 1st stage rotor shrouded blade is taken for an example in the article, tightness of shroud and contact force,blade body stress under working state and assembly state are calculated by finite element contact analysis method, influence of working load （temperature and centrifugal force） is mainly analyzed. Analysis results indicate： shroud tightness is determined by pre-twist angle of shroud and working load, the centrifugal force plays a main role to the tightness change。
出处
《噪声与振动控制》
CSCD
北大核心
2005年第4期5-7,17,共4页
Noise and Vibration Control
关键词
振动与波
带冠叶片
预扭
紧度
接触力
vibration and wave
shrouded blade pre-twist
tightness
contact force
