火箭起飞和跨声速外载荷辨识方法

Identification Method of the External Load in Launch Vehicle’s Takeoff and Transonic Time

火箭起飞和跨声速段脉动压力外载荷,是影响卫星及火箭设计的重要因素,基于卫星与火箭界面实测加速度响应,研究了外载荷辨识方法,系统给出了响应、动力学模型对外载荷辨识结果的影响规律,最终形成了一种工程适应的外载荷辨识方法,为星箭动力学载荷及响应分析提供了重要依据,具有重要的应用价值。

The fluctuating pressure external load in launch vehicle’s takeoff and transonic time is an important factor affecting satellite and launch vehicle design.Based on the measured acceleration response of satellite and launch vehicle interface,the external load identification method is studied,and it is systematically given the influence rules of response and dynamic model on the external load identification results.Finally,an engineering-adaptive external load identification method is formed,which can provide an important basis for dynamic load and response analysis of satellite and launch vehicle,and has important application value.