摘要
采用角速率作为定向器束振动特性的表征 ,用压电射流角速率陀螺仪测量了定向器束实际发射状态下的角速率。其时间历程包括发射时弹体在管内运行、燃气对定向器束冲击及冲击后定向器束自由振动的振动角速率。利用联合时频分析方法分析了振动角速率信号 。
Angular rate is selected to represent the vibration characteristic. It was measured by using piezoelectric jet flow gyroscope when launching. The time history of angular rate includes three stages which are rocket moving in tube, exhausted flow impacting and free vibration after impacting. The angular rate signal was processed by using joint time frequency analysis algorithm. The time history dependent vibration frequency of launch tubes cluster was calculated.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2002年第3期267-269,共3页
Journal of Nanjing University of Science and Technology
基金
国防科技预研行业基金资助项目
