弹射式导弹发射对超音速飞行载机的动力学影响

Ejection Launching on Dynamic Response of Supersonic Carrier-aircraft

在载机超音速飞行发射导弹时载机通过弹射装置施加在导弹上的弹射力大且作用时间短,对载机的扰动较大,会影响到载机和导弹的安全分离。为了研究该扰动下载机的动力学响应,建立了载机的作超音速自然飞行的动力学模型,并验证了该模型的合理有效性,同时设计了一套弹射式发射架。研究结果表明弹射力对载机的运动有一定影响,但是对导弹的出舱速度影响显著,载机对弹射架位置的变化动力学响应明显,多刚体的弹射系统能够按要求发射导弹。

The force produced by vertical ejecting mechanism is large and lasts for a short time when the carrier-aircraft ejects missile in supersonic flight, because the turbulence caused by the force is big, it will disturb safe separation. In order to research the dynamic response under the turbulence, a dynamic model which describes a supersonic free flight carrier-aircraft was established and the model was proved to be reasonable and available. A suit of vertical ejecting mechanism was designed for the carrier-aircraft simultaneously. The results of the research show the ejecting force has some effect on the carrier-aircrraft, but affects the initialvelocity of the missile distinctly. The change of the location of the vertical ejecting on the carrier-aircraft produces obvious effect on the carrier-aircraft＇s movement. The multi-rigid-body vertical ejecting mechanism can eject missile according to request.