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随着对导弹速度和精度等性能要求的提高,弹性特性已成为导弹动力学分析与设计中不可忽略的因素。弹性振动将对导弹的飞行特性和控制精度产生较大的影响。因此,在对弹性体导弹进行半物理仿真时,考虑弹体弹性振动所产生的影响,有利于提高仿真的真实度。本文发展了考虑弹体弹性的导弹飞行动力学数学仿真框架,建立了弹性体导弹半物理仿真系统各环节的数学模型,实现了半物理环节动力学模型在数学仿真框架中的集成与一体化仿真,并在此基础上分析了弹性振动和仿真设备在弹性体导弹半物理仿真中的影响,数值仿真结果表明,研究结果可以为考虑弹体弹性的导弹半物理仿真提供一定的理论基础。
With the improvement of performance requirements such as missile velocity and accuracy, the elastic characteristics have become a factor which can not be neglected in the missile dynamic analysis and design. Elastic vibration will have a greater impact on the missile’s flight characteristics and control accuracy. Therefore, in the semi-physical simulation of elastomeric missiles, considering the impact of projectile elastic vibration, it is beneficial to improve the simulation’s realism. In this paper, the mathematic model of the missile flight dynamics considering missile flexibility is developed and the mathematic model of each link in the semi-physical simulation system of the elastomeric missile is established. The integration and integration simulation of the dynamics model of the semi-physical link in the mathematical simulation framework Based on this, the influence of elastic vibration and simulation equipment on the semi-physical simulation of elastomeric missile is analyzed. The numerical simulation results show that the results can provide a theoretical basis for semi-physical simulation of missile.