机翼疲劳试验控制精度提升方法研究

Research on the method of improving the control accuracy of wing fatigue test

摘要:

为了达到提供飞机结构疲劳试验控制精度,加快疲劳试验速度的目的,在机翼结构疲劳试验中,创新设计机翼与加载系统间的连接装置、综合运用PID调谐、振荡频率过滤、交叉耦合补偿等多项技术,经过长时间的试验跟踪调试,实现了按照优于行标与国军标一倍的试验控制精度快速运行机翼疲劳试验的目标,为以后类似的飞机部件及全机疲劳试验提供了参考及借鉴。

Abstract:

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.