论文部分内容阅读
航天结构件在飞行过程中承受振动载荷作用,固有频率附近的输入以及响应对其疲劳起主要作用。采用理论分析的方法,阐明固有频率对疲劳的影响,并进行了有限元计算验证分析,介绍了在工程研制中的应用方向。
Aerospace structures bear the vibration load during flight, and the input and response near the natural frequency play a major role in fatigue. The influence of natural frequency on fatigue is analyzed by theoretical analysis, and the finite element analysis is carried out to verify the application. The application direction in engineering development is also introduced.