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Actuators
Volume 9
Issue 2
10.3390/act9020035
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Article

Design and Development of a Planetary Gearbox for Electromechanical Actuator Test Bench through Additive Manufacturing

by
Pier Carlo Berri
,
Matteo D. L. Dalla Vedova
*,
Paolo Maggiore
and
Guido Riva
Department of Aerospace and Mechanical Engineering (DIMEAS), Politecnico di Torino, 10129 Turin, Italy
*
Author to whom correspondence should be addressed.
Actuators 2020, 9(2), 35; https://doi.org/10.3390/act9020035
Received: 7 April 2020 / Revised: 23 April 2020 / Accepted: 29 April 2020 / Published: 1 May 2020
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Abstract

The development and validation of prognostic algorithms and digital twins for Electromechanical Actuators (EMAs) requires datasets of operating parameters that are not commonly available. In this context, we are assembling a test bench able to simulate different operating scenarios and environmental conditions for an EMA in order to collect the operating parameters of the actuator both in nominal conditions and under the effect of incipient progressive faults. This paper presents the design and manufacturing of a planetary gearbox for the EMA test bench. Mechanical components were conceived making extensive use of Fused Deposition Modelling (FDM) additive manufacturing and off-the-shelf hardware in order to limit the costs and time involved in prototyping. Given the poor mechanical properties of the materials commonly employed for FDM, the gears were not sized for the maximum torque of the electric motor, and a secondary torque path was placed in parallel of the planetary gearbox to load the motor through a disc brake. The architecture of the gearbox allowed a high gear ratio within a small form factor, and a bearingless construction with a very low number of moving parts. View Full-Text
Keywords: electromechanical actuator; additive manufacturing; planetary gearbox; test bench; rapid prototyping electromechanical actuator; additive manufacturing; planetary gearbox; test bench; rapid prototyping
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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MDPI and ACS Style

Berri, P.C.; Dalla Vedova, M.D.L.; Maggiore, P.; Riva, G. Design and Development of a Planetary Gearbox for Electromechanical Actuator Test Bench through Additive Manufacturing. Actuators 2020, 9, 35. https://doi.org/10.3390/act9020035

AMA Style

Berri PC, Dalla Vedova MDL, Maggiore P, Riva G. Design and Development of a Planetary Gearbox for Electromechanical Actuator Test Bench through Additive Manufacturing. Actuators. 2020; 9(2):35. https://doi.org/10.3390/act9020035

Chicago/Turabian Style

Berri, Pier Carlo, Matteo D. L. Dalla Vedova, Paolo Maggiore, and Guido Riva. 2020. "Design and Development of a Planetary Gearbox for Electromechanical Actuator Test Bench through Additive Manufacturing" Actuators 9, no. 2: 35. https://doi.org/10.3390/act9020035

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