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Failure modes and probabilities of a high redundancy actuator
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posted on 2008-03-06, 15:27 authored by Thomas Steffen, Jessica Davies, Roger Dixon, Roger M. Goodall, John T. Pearson, Argyrios C. ZolotasA high redundancy actuator (HRA) is composed of a high number of actuation
elements, increasing both the travel and the force over the power of an individual element. This
provides inherent fault tolerance, because when an element fails, the capabilities of the actuator
may be reduced, but it does not become dysfunctional. This paper analyses the likelihood of
different reductions in capabilities, based on the reliability of the actuation elements used. The
result is a probability distribution that quantifies the capability of the high redundancy actuator.
Together with the required capabilities, this determines the fault tolerance of the actuator.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
STEFFEN, T. ... et al, 2008. Failure modes and probabilities of a high redundancy actuator. 17th IFAC World Congress, July 6-11, Seoul, KoreaPublisher
© The International Federation of Automatic Control (IFAC)Publication date
2008Notes
This is a conference paperLanguage
- en