为了提高某车载防空系统行进间发射的发射精度、发射稳定性以及发射安全性,综合考虑行进间发射时所受的路面随机激励、发射后坐力和燃气流冲击力的影响,基于路面功率谱密度,采用谐波叠加法原理模拟三维路面并对生成的路面进行验证,采用多体动力学方法,在符合国家标准的路面上进行仿真分析与研究,得到该防空武器系统行进间发射的安全包络区间,研究表明,在规定路面和车速情况下,可以安全发射。关键词:行进间发射;功率谱密度;谐波叠加法;发射安全性

In order to improve the launching accuracy, launching stability and launching safety of the vehicle-mounted air defense system launching on the move, the excitation of random road surface, missile counterforce and impulsive force of combustion-gas flow, artillery counterforce must be comprehensive consideration. Based on the power spectrum density of road, using an harmonic superposition method to create three-dimensional randomly road model and to verify it. Simulation analysis and research are carried out on the road surface with national standard by multi-body dynamics method. The safety envelope interval of the air defense weapon system is obtained. Research shows that it's safe to launch under the condition of specified road surface and vehicle speed. Keywords: launch on the move; power spectral density; harmonic superposition; launching safety