基于惯组实测数据的外挂导弹着陆冲击条件拟合方法

针对飞机外挂导弹上设备的着陆冲击环境设计问题,提出了基于惯组实测数据的外挂导弹着陆冲击条件拟合方法.给出了拟合方法的流程图,建立了飞机着陆的简化模型,研究其着陆过程动态响应时域曲线,选择标准时域冲击波形作为设计对象;通过遍历方法形成不同参数的标准冲击波形,将其频域分析结果与实测数据的频域分析结果进行对比,辨识出最终时域波形的设计参数;本方法可简单有效地辨识出时域冲击波形条件,作为工程设计参考.

Study on the Landing Shock Identification of the External-Store Missile Based on the Measurement Data

To solve the landing shock design problem of the external-store missile,the curve fitting method of the landing shock was investigated based on the measurement data.Firstly,the strategy of the method was put forward.Secondly,the simplified model of landing aircraft was established,and the dynamic response of the landing process was simulated,which is supposed to decide which standard shock ware used.At last,a series of shock waves were derived by ergodic wave parameters,whose frequency domain analysis are compared to the one of the measurement data,where the parameters of the shock wave are identified.The wave parameters of landing shock can be identified effectively,and the method can be a reference for engineering design.