摘要
研究了疲劳裂纹对悬臂梁的固有频率及强迫振动响应的影响，使用余弦函数描述疲劳裂纹的开合过程。计算结果表明，疲劳裂纹不仅使悬臂梁的固有频率下降，而且引起非线性强迫振动响应。
The influnces of a fatigue crack on cantilever beam′s natural frequency and forced vibration response are studied. A cosine function is used to describe the fatigue crack′s open close process. The results show that the fatigue crack not only decreases the natural frequency, but also causes non linear vibration.
出处
《机械科学与技术》
EI
CSCD
北大核心
1998年第1期27-28,43,共3页
Mechanical Science and Technology for Aerospace Engineering
