摘要
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。
Space structure bear vibration load during the flight, structure fatigue is greatly relevant to the importation and respondence near natural frequency, The influence of natural frequency is clarified based on theoretical analysis and verified by FEM numerical computation, its application in engineering development is also introduced.
出处
《导弹与航天运载技术》
北大核心
2015年第4期78-83,共6页
Missiles and Space Vehicles
基金
国家863项目(2014AA0181)
关键词
固有频率
频带宽度
疲劳寿命
Natural frequency
Band width
Fatigue life
