利用典型状态的风洞试验结果对十字布局与叉字布局再入机动飞行器的气动特性进行了分析与比较。
In this paper aerodynamic characteristics of maneuvering reentry vehicle of cruciform configuration and bifurcate configuration are compared by means of the wind tunnel test results.
利用CFD数值模拟手段，根据选定的飞行轨迹和进气系统调节规律，对沿飞行轨迹各典型状态的流场进行了计算。
By using CFD technology, the inlet fluid fields at different typical flight condition along the flight trajectory are numerically simulated.
对各典型状态滚动轴承在不同转速和载荷下的声发射信号进行了振动分析，研究了滚动轴承的损伤振动随转速和载荷的变化规律。
Based on the vibration analysis of AE signals under varying load and rotating speed, the patterns of damage vibration of rolling element bearings under varying load and rotating speed were researched.
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