Redundant actuator is the key component of Fly-By-Wire (FBW) system in which exists the inherent force fighting among different redundant channels at colligation point. This paper establishes the mathematical model of quad redundant actuator (QRA), investigates the force equalization algorithm and carries out the performance degradation simulation and reliability analysis under the first failure and the second failure. The results indicate that the optimal equalization algorithm can solve the force fighting...
In modern aircraft,redundant actuation sys-temis widely used to achieve high reliability andsafety[1].As a matter of fact,the reliability of sin-gle channel of FBWsystemis low,and the redun-dant techniqueis the most effective methodto real-ize the active
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