国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to provide the control precision of fatigue test for aircraft structure and accelerate the speed of fatigue test, in the fatigue test of wing structure, innovative design of connecting device between wing and loading system, integrated use of PID tuning, vibration frequency filtering, cross-coupling compensation and other technologies, after a long period of test tracking and debugging, double the standard of HB and GJB has been achieved. The aim of fast running wing fatigue test with test control accuracy is to provide reference for similar aircraft components and whole aircraft fatigue test in the future.