基于冲击响应谱的导弹冲击试验条件制定与优化方法研究

Institution and optimization of the percussion experiment condition of missiles based on the shock response spectrum

为解决在实测数据不足的情况下制定导弹冲击试验条件困难的问题,首先给出冲击响应谱模型,根据实际冲击激励(质心过载),运用冲击响应谱计算模型计算导弹在一定频率范围内的冲击响应谱,并与遥测数据进行对比验证,验证冲击响应谱模型的正确性;随后,根据试验设备输出的波形、脉冲宽度和过载范围,以及导弹在一定范围内的冲击响应谱,使用自适应差分进化算法进行优化,选择出最优试验条件以达到模拟实际冲击环境的目的。该方法可作为导弹在研制阶段确定冲击试验条件的理论依据。

For the sake of the institution of percussion test condition of missiles under the situation of insufficient measured data,the shock response spectrum（ SRS） model was introduced. The SRS of a missile in a specific range of rate was calculated by using the SRS model based on the actual shock excitation（ acceleration of barycenter） and compared with telemetering data to improve the validity of the SRS model. Then,based on the output of the experiment equipment and the SRS of the missile in the specific range of rate,a self-adapting differential evolutionary algorithm was used to obtain the optimal experiment condition of missile to simulate the actual impulsive environment. The method can be used as a theoretical basis for ensuring the percussion experiment condition of missile in development phase.