火箭推进2025，Vol.51Issue(5)：56-62,7.DOI:10.3969/j.issn.1672-9374.2025.05.006
某靶标助推段横侧向大过载振荡分析
Analysis of the large amplitude lateral vibration in a certain target's booster phase
摘要
Abstract
There is a kind of large amplitude lateral vibration in a certain target's booster phase,which may cause some faults to missions.In order to analyse how the lateral vibration comes into being,some telemeter data signal processing and analysis are made to recognise the vibration characters and the relationships between the telemeter data.Then,by comparing the vibration characters with the structure vibration modes,the lateral vibration can be confined to some lateral band vibration mode patterns.At last,with the help of the flight simulation analyses,it is shown that the lateral vibration is affected by the yaw channel,which is excited by the rolling control as the target's coupled aerodynamic characteristics,and as a result,the additional accelerations are detected by the inertial components.关键词
靶标/短时傅里叶变换/振动模态/阶跃激励/周期性激励Key words
target/short-time Fourier transform/vibration mode/step excitation/periodic excitation引用本文复制引用
王磊,高浩,柳长安,李家乐..某靶标助推段横侧向大过载振荡分析[J].火箭推进,2025,51(5):56-62,7.基金项目
中国航天科技集团科技创新项目(2014qj.htyq-1tm) （2014qj.htyq-1tm）
