基于蒙特卡洛模拟的导弹级间分离干扰仿真

级间分离的稳定性、可靠性关系到主级导弹的稳定飞行,采用蒙特卡洛方法对干扰作用下的导弹级间分离进行模拟仿真。首先分析影响级间分离过程的各种随机干扰因素,在此基础上建立了包含随机干扰因素的分离动力学数学模型,然后利用蒙特卡洛方法和随机干扰参数对分离过程进行仿真。仿真结果表明,各种干扰作用下助推级和主级可安全分离。蒙特卡洛方法可快速对级间分离潜在风险以及失败概率进行预测,同时也能定量评估各项干扰因素对分离的影响程度。

Simulation of disturbance of missile stage separation Based on Monte-Carlo Method

Stable flight of main missile is related with stage separation reliability, stability. The Monte Carlo method was used to simulate for missile stage separation under random off-nominal parameters. First the random off-nominal parameter was analyzed. Then Separation dynamics model were established containing off-nominal parameter. Final the Monte Carlo method were performed to evaluate the risk of failure for the separation event. The simulation result demonstrates that it isScan beSsafe separation under interference. Monte Carlo method can be quickly to predict the potential risks and the probability of failure, while also quantitative assess the impact of interference factor onSseparation.