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为了研究试飞员在紧急情况下跳伞离机后的安全情况,进行了试飞员应急离机跳伞风洞试验。通过采用气动相似原理,对试验条件、试验模型的参数进行修正调整,使其在风洞中能模拟真实的飞行情况,试验还采用了控制变量法对飞机在不同速度的离机轨迹进行分析。试验结果表明,飞机速度越慢,人模离机后与飞机本体距离越大,在不小于最小离机速度的情况下,速度越小,试飞员离机后发生碰撞的可能性越小,即越安全。
In order to study the safety of test pilots after parachuting out of flight in an emergency situation, a test pilot emergency off-air parachute wind tunnel test was conducted. By adopting the principle of aerodynamic similarity, the parameters of the test conditions and test model are adjusted and adjusted to simulate the real flight conditions in the wind tunnel. The control variable method is also used to analyze the off-machine trajectory of the aircraft at different speeds. The test results show that the slower the aircraft speed, the greater the distance between the mannequin and the aircraft body after leaving the aircraft, the smaller the speed is and the smaller the speed is and the less likely the pilot will collide after leaving the aircraft, ie, The more secure.