Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9702417 | Chinese Journal of Aeronautics | 2005 | 7 Pages |
Abstract
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 effectively, and the QRA can operate at degradation performance continuously under the first failure and the second failure. With the dynamic fault tree analysis, this paper calculates the reliability based on the performance of QRA and proves that the redundant actuator has very high reliability and safety.
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Shao-ping WANG, Ming-shan CUI, Jian SHI, Ming KANG,