内装式空射运载火箭与载机分离研究

为了比较内装式空射运载火箭前向发射和后向发射的性能,在定性分析内装式运载火箭与载机分离过程的基础上,建立了内装式空射运载火箭采用前向发射和后向发射时的分离过程数学模型.其中运载火箭的数学模型是刚体运动模型,稳定伞的模型是质点模型,而伞绳的模型是弹簧阻尼系统模型.以此数学模型为基础,对两种发射方式的分离过程进行了仿真计算.结果表明,内装式空射运载火箭采用前向发射方式比采用后向发射方式具有较大的性能优势,但运载火箭的姿态控制是前向发射的技术难点.     

拖缆的弹簧柔性体模型在拖曳式空中发射系统中的应用研究

拖曳式空中发射系统模型的复杂程度很大程度上取决于拖缆模型描述的复杂程度.将拖缆视为"弹簧柔性体",即串联的一系列线性弹簧来处理,不仅可以求解拖缆的静态位形,还可以求解拖缆的动力学特性,谋求解决拖缆的动力学问题.所以,从理论上讲是一种较为理性的模型.     

Experimental study on the improvement of spray characteristics of aero-engines using gliding arc plasma

A gliding arc plasma fuel atomization actuator suitable for aeroengines was designed, and a gliding arc plasma fuel spray experimental platform was built to address the fuel atomization problem in aeroengine combustion chambers. The spray characteristics for different airflows,fuel flows, and discharge voltages were analyzed using laser particle size analysis. The research shows that the fuel atomization effect is improved from the increased airflow. The decreased fuel flow not only reduces the ...