摘要
采用有限元法,基于ABAQUS和nCode开展了火箭增压输送管路随机振动疲劳寿命仿真研究,建立了典型输送管路的有限元分析模型,计算得到了管路结构的频响特性,在此基础上基于频域随机振动疲劳寿命分析方法,计算了输送管路在随机振动条件下的疲劳寿命。研究结果表明,该分析方法可用于指导运载火箭的增压输送系统管路疲劳耐久性的设计和分析,具有一定的工程应用价值。
Using the finite element method,adopted the ABAQUS and nCode,simulation of launch vehicle pressurization system transport pipeline's random vibration fatigue lifetime is studied,the FEM model used for calculating frequency response property of typical transport pipeline is established,then the random vibration fatigue lifetime of transport pipeline based on frequency was calculated by giving vibration property.The method in this paper can provide guidance for the design and analysis of launch vehicle pressurization system transport pipeline,it also has worth in engineering application.
作者
方红荣
薛立鹏
李朝晖
Fang Hong-rong;Xue Li-peng;Li Zhao-hui(Beijing Institute of Astronautical Systems Engineering, Beijing, 100076)
出处
《导弹与航天运载技术》
CSCD
北大核心
2017年第4期107-110,共4页
Missiles and Space Vehicles
关键词
增压输送管路
随机振动
疲劳寿命
仿真
Pressurization system transport pipeline
Random vibration
Fatigue lifetime
Simulation
