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低速空降风洞试验的一个重要目的是研究伞降人员在离机初期的运动姿态和空间轨迹,考察伞降人员的离机安全性。从不带伞空降风洞试验出发,分析归纳单次出舱和连续出舱空降风洞试验中的一些关键技术,包括试验方法的选取、相似参数的确定、空降模型的设计加工和调整技术、载机支撑方式和支撑干扰的影响、空降模型出舱姿态的控制、空降轨迹捕获和分析技术等。进而初步探讨带伞空降风洞试验的一些特有问题,旨在为进一步发展低速空降风洞模拟试验技术提供支持。
An important purpose of the low-speed air-drop wind tunnel test is to study the posture and space trajectory of parachuting personnel in the initial stage of departure from the aircraft and to investigate the off-machine safety of the parachuting personnel. Based on the experiment of no-air parachute tunnel, some key technologies in the single-hopper and continuous air-evacuation wind tunnel tests are analyzed, including the selection of test methods, the determination of similar parameters, the design and adjustment of airborne model, The impact of aircraft support mode and support disturbance, the control of airborne model cabin attitude, airborne trajectory capture and analysis technology. Then some special problems about the experiment of parachute wind tunnel with umbrella are discussed tentatively to provide some support for the further development of simulation test technology of low speed airborne wind tunnel.