Torque Limiters for Aerospace Actuator Application

Safety and reliability of electrical actuators are essential for success of all electric and more electric aircrafts (MEA). Torque limiters improve the reliability of electromechanical actuators (EMA) by restricting the amount of force experienced by the actuator drive train components. If transmitt...

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Main Authors: Syed Shahjahan Ahmad, Liya Tom, Antonino La Rocca, Salvatore La Rocca, Gaurang Vakil, Chris Gerada, Maamar Benarous
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/4/1467
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author Syed Shahjahan Ahmad
Liya Tom
Antonino La Rocca
Salvatore La Rocca
Gaurang Vakil
Chris Gerada
Maamar Benarous
author_facet Syed Shahjahan Ahmad
Liya Tom
Antonino La Rocca
Salvatore La Rocca
Gaurang Vakil
Chris Gerada
Maamar Benarous
author_sort Syed Shahjahan Ahmad
collection DOAJ
description Safety and reliability of electrical actuators are essential for success of all electric and more electric aircrafts (MEA). Torque limiters improve the reliability of electromechanical actuators (EMA) by restricting the amount of force experienced by the actuator drive train components. If transmitted torque in the shaft exceeds a limit, it gives way in a controlled manner. This protects the actuator from potential failure and jamming. In this paper, different types of existing torque limiters are investigated for their suitability in aerospace EMA application and further integration within the electric motor. They classified based on the torque transmission mechanism and each type is described in detail. Operating principle and basic characteristics are reported. Comparative evaluation of commercially available devices is presented. It is found that those based on friction based and permanent magnet are most suitable due to their good torque density, reliability and high speed capability. Further, based on the characteristics, integration of torque limiter within the actuator motor is investigated in this paper. An example actuator motor is considered for integration. Different integration options suitable for the different types of torque limiting devices are described. Reduction in overall volume is shown for the integration options. Such integration can lead to improved reliability as well as higher power density resulting in next-generation actuator electrical drives for MEA.
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spelling doaj.art-dbec3248aff74303a5a231e63b44eecc2023-11-23T19:44:36ZengMDPI AGEnergies1996-10732022-02-01154146710.3390/en15041467Torque Limiters for Aerospace Actuator ApplicationSyed Shahjahan Ahmad0Liya Tom1Antonino La Rocca2Salvatore La Rocca3Gaurang Vakil4Chris Gerada5Maamar Benarous6Power Electronics, Machines and Control (PEMC) Research Group, University of Nottingham, Nottingham NG7 2RD, UKPower Electronics, Machines and Control (PEMC) Research Group, University of Nottingham, Nottingham NG7 2RD, UKPower Electronics, Machines and Control (PEMC) Research Group, University of Nottingham, Nottingham NG7 2RD, UKPower Electronics, Machines and Control (PEMC) Research Group, University of Nottingham, Nottingham NG7 2RD, UKPower Electronics, Machines and Control (PEMC) Research Group, University of Nottingham, Nottingham NG7 2RD, UKPower Electronics, Machines and Control (PEMC) Research Group, University of Nottingham, Nottingham NG7 2RD, UKCollins Aerospace, Wolverhampton WV10 7EH, UKSafety and reliability of electrical actuators are essential for success of all electric and more electric aircrafts (MEA). Torque limiters improve the reliability of electromechanical actuators (EMA) by restricting the amount of force experienced by the actuator drive train components. If transmitted torque in the shaft exceeds a limit, it gives way in a controlled manner. This protects the actuator from potential failure and jamming. In this paper, different types of existing torque limiters are investigated for their suitability in aerospace EMA application and further integration within the electric motor. They classified based on the torque transmission mechanism and each type is described in detail. Operating principle and basic characteristics are reported. Comparative evaluation of commercially available devices is presented. It is found that those based on friction based and permanent magnet are most suitable due to their good torque density, reliability and high speed capability. Further, based on the characteristics, integration of torque limiter within the actuator motor is investigated in this paper. An example actuator motor is considered for integration. Different integration options suitable for the different types of torque limiting devices are described. Reduction in overall volume is shown for the integration options. Such integration can lead to improved reliability as well as higher power density resulting in next-generation actuator electrical drives for MEA.https://www.mdpi.com/1996-1073/15/4/1467more electric aircraftactuatorelectromechanical actuatorcouplertorque limiter
spellingShingle Syed Shahjahan Ahmad
Liya Tom
Antonino La Rocca
Salvatore La Rocca
Gaurang Vakil
Chris Gerada
Maamar Benarous
Torque Limiters for Aerospace Actuator Application
Energies
more electric aircraft
actuator
electromechanical actuator
coupler
torque limiter
title Torque Limiters for Aerospace Actuator Application
title_full Torque Limiters for Aerospace Actuator Application
title_fullStr Torque Limiters for Aerospace Actuator Application
title_full_unstemmed Torque Limiters for Aerospace Actuator Application
title_short Torque Limiters for Aerospace Actuator Application
title_sort torque limiters for aerospace actuator application
topic more electric aircraft
actuator
electromechanical actuator
coupler
torque limiter
url https://www.mdpi.com/1996-1073/15/4/1467
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AT salvatorelarocca torquelimitersforaerospaceactuatorapplication
AT gaurangvakil torquelimitersforaerospaceactuatorapplication
AT chrisgerada torquelimitersforaerospaceactuatorapplication
AT maamarbenarous torquelimitersforaerospaceactuatorapplication