2022
DOI: 10.3390/s22051796
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Study on a Fault Mitigation Scheme for Rub-Impact of an Aero-Engine Based on NiTi Wires

Abstract: The aim of this study was to solve the frequently occurring rotor-stator rub-impact fault in aero-engines without causing a significant reduction in efficiency. We proposed a fault mitigation scheme, using shape memory alloy (SMA) wire, whereby the tip clearance between the rotor and the stator is adjusted. In this scheme, an acoustic emission (AE) sensor is utilized to monitor the rub-impact fault. An active control actuator is designed with pre-strained two-way SMA wires, driven by an electric current via an… Show more

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Cited by 1 publication
(1 citation statement)
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“…Pan et al [11] proposed a new method to investigate the mitigation of commonly occurring rotor-stator rub impact faults in aero-engines. A pre-strained, two-way shape memory alloy (SMA) wire was used in the design of a current-driven active control actuator to mitigate the occurrence of rub impact faults.…”
Section: Introductionmentioning
confidence: 99%
“…Pan et al [11] proposed a new method to investigate the mitigation of commonly occurring rotor-stator rub impact faults in aero-engines. A pre-strained, two-way shape memory alloy (SMA) wire was used in the design of a current-driven active control actuator to mitigate the occurrence of rub impact faults.…”
Section: Introductionmentioning
confidence: 99%