交叉耦合补偿在飞机水平安定面疲劳试验中的应用  

Application of Cross-Coupling Compensation to Fatigue Test of Aircraft Horizontal Stabilizer

作　　者：张永兴[1] 米征[1] Zhang Yongxing;Mi Zheng(Aircraft Strength Research Institute of China,Xi′an 710065,Shaanxi,China)

机构地区：[1]中国飞机强度研究所全尺寸飞机结构静力/疲劳实验室,陕西西安710065

出　　处：《工程与试验》2020年第3期25-26,85,共3页Engineering and Test

摘　　要：飞机结构疲劳试验一般基于典型的PID控制模式,多个控制通道在载荷施加过程中由于试验件结构变形等因素而产生交叉耦合,交叉耦合作用导致试验加载误差增大,试验速率降低,严重影响试验控制品质。本文研究了交叉耦合补偿技术的原理与实现途径,探讨了该技术在疲劳试验中的应用条件与方法,为交叉耦合补偿技术在全尺寸飞机疲劳试验中的应用奠定了基础。The fatigue test of aircraft structure is generally based on the typical PID control mode.In the process of loading,multiple control channels produce the cross-coupling due to the structural deformation of test pieces and other factors.The cross-coupling effect leads to the increase of the test loading error and the decrease of test rate,which seriously affects the quality of test control.In this paper,the principle and realization of the cross-coupling compensation technology are studied,and the application condition and method of the technology in the fatigue test are discussed,which lays a foundation for the application of the cross-coupling compensation technology to full-scale aircraft fatigue test.

关 键 词：疲劳试验 交叉耦合补偿 PID控制 

分 类 号：V216.3[航空宇航科学与技术—航空宇航推进理论与工程]