HRA - Intrinsically fault tolerant actuation through high redundancy

R. Dixon; T. Steffen; J. Davies; R. M. Goodall; A. C. Zolotas; J. Pearson; X. Du

doi:10.3182/20090630-4-ES-2003.00199

HRA - Intrinsically fault tolerant actuation through high redundancy

R. Dixon, T. Steffen, J. Davies, R. M. Goodall, A. C. Zolotas, J. Pearson, X. Du

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

The aim of this paper is to summarise on-going research into a new method of providing fault tolerant actuators for high-integrity and/or safety-critical applications. The High Redundancy Actuator (HRA) project aims to exploit a large number of very small actuation elements to make up a single large actuator. This is in contrast to current technology where a relatively low level of functional redundancy is used. The HRA elements are configured and controlled in such a way that faults in individual elements are inherently accommodated without resulting in a failure of the complete actuation system. The HRA project research challenges are outlined and progress to-date is discussed.

Original language	English
Pages (from-to)	1216-1221
Number of pages	6
Journal	IFAC-PapersOnLine
Volume	42
Issue number	8
DOIs	https://doi.org/10.3182/20090630-4-ES-2003.00199
Publication status	Published - 1 Dec 2009
Externally published	Yes
Event	7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems - Barcelona, Spain Duration: 30 Jun 2009 → 3 Jul 2009 Conference number: 7

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AU - Dixon, R.

AU - Steffen, T.

AU - Davies, J.

AU - Goodall, R. M.

AU - Zolotas, A. C.

AU - Pearson, J.

AU - Du, X.

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AB - The aim of this paper is to summarise on-going research into a new method of providing fault tolerant actuators for high-integrity and/or safety-critical applications. The High Redundancy Actuator (HRA) project aims to exploit a large number of very small actuation elements to make up a single large actuator. This is in contrast to current technology where a relatively low level of functional redundancy is used. The HRA elements are configured and controlled in such a way that faults in individual elements are inherently accommodated without resulting in a failure of the complete actuation system. The HRA project research challenges are outlined and progress to-date is discussed.

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HRA - Intrinsically fault tolerant actuation through high redundancy

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