再入弹头落地时的动导数,以及有升力面的再入飞行器在高超声速情况下的动稳定特性,是高超声速飞行器设计师们所关心的问题之一。而研究这一课题的必要途径之一,则是地面模拟试验。 一般来说,动稳定性的地面模拟试验方法基本上可分为两大类:一类是模型有约束的;另一类则是模型自由飞。由于支承干扰往往产生难以完全排除的明显影响,模型自 The dynamic derivative of the reentry missile landing and the dynamic stability of the reentry vehicle with the lifting surface at hypersonic conditions are one of the concerns of hypersonic vehicle designers. One of the necessary ways to study this subject is ground simulation. In general, the dynamic stability of the ground simulation test can be basically divided into two categories: one is constrained by the model; the other is the model free to fly. Since support disturbances tend to have significant effects that are difficult to completely rule out, the model has since been