Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications

We describe an engineering solution to manufacture electromagnetic linear actuators for moving rudders and fin stabilizers of military shipsItalian Ministry of Defence, General Direction of Naval Equipments (NAVARM), Projects ISO (2012-2014) and EDDA (2015-2017).. The solution defines the transition...

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Main Author: Muscia Roberto
Format: Article
Language:English
Published: De Gruyter 2017-11-01
Series:Open Engineering
Subjects:
Online Access:https://doi.org/10.1515/eng-2017-0033
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author Muscia Roberto
author_facet Muscia Roberto
author_sort Muscia Roberto
collection DOAJ
description We describe an engineering solution to manufacture electromagnetic linear actuators for moving rudders and fin stabilizers of military shipsItalian Ministry of Defence, General Direction of Naval Equipments (NAVARM), Projects ISO (2012-2014) and EDDA (2015-2017).. The solution defines the transition from the conceptual design of the device initially studied from an electromagnetic point of view to mechanical configurations that really work. The structural problems that have been resolved with the proposed configuration are described. In order to validate the design choices discussed we illustrate some results of the numerical simulations performed by the structural finite elements method. These results quantitatively justify the suggested mechanical solution by evaluating stresses and deformations in a virtual prototype of the structure during its functioning. The parts of the device that have been studied are the most critical because in cases of excessive deformation/stress, they can irreparably compromise the actuator operation. These parts are the pole piece-base set and the retention cages of the permanent magnets. The FEM analysis has allowed us to identify the most stressed areas of the previous elements whose shape has been appropriately designed so as to reduce the maximum stresses and deformations. Moreover, the FEM analysis helped to find the most convenient solution to join the pole pieces to the respective bases. The good results obtained by the suggested engineering solution have been experimentally confirmed by tests on a small prototype actuator purposely manufactured. Finally, a qualitative analysis of the engineering problems that have to be considered to design electromagnetic linear actuators bigger than the one already manufactured is illustrated.
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spelling doaj.art-3c526c65066d493fb2103aca97b6da282022-12-21T19:18:32ZengDe GruyterOpen Engineering2391-54392017-11-017124427210.1515/eng-2017-0033eng-2017-0033Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine ApplicationsMuscia Roberto0University of Trieste, Department of Engineering and Architecture, Via A. Valerio n.10, 34127Trieste, ItalyWe describe an engineering solution to manufacture electromagnetic linear actuators for moving rudders and fin stabilizers of military shipsItalian Ministry of Defence, General Direction of Naval Equipments (NAVARM), Projects ISO (2012-2014) and EDDA (2015-2017).. The solution defines the transition from the conceptual design of the device initially studied from an electromagnetic point of view to mechanical configurations that really work. The structural problems that have been resolved with the proposed configuration are described. In order to validate the design choices discussed we illustrate some results of the numerical simulations performed by the structural finite elements method. These results quantitatively justify the suggested mechanical solution by evaluating stresses and deformations in a virtual prototype of the structure during its functioning. The parts of the device that have been studied are the most critical because in cases of excessive deformation/stress, they can irreparably compromise the actuator operation. These parts are the pole piece-base set and the retention cages of the permanent magnets. The FEM analysis has allowed us to identify the most stressed areas of the previous elements whose shape has been appropriately designed so as to reduce the maximum stresses and deformations. Moreover, the FEM analysis helped to find the most convenient solution to join the pole pieces to the respective bases. The good results obtained by the suggested engineering solution have been experimentally confirmed by tests on a small prototype actuator purposely manufactured. Finally, a qualitative analysis of the engineering problems that have to be considered to design electromagnetic linear actuators bigger than the one already manufactured is illustrated.https://doi.org/10.1515/eng-2017-0033linear actuatorconceptual designmechanical designfemsolid modellingstructural analysisstressdeformationsvibrations
spellingShingle Muscia Roberto
Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications
Open Engineering
linear actuator
conceptual design
mechanical design
fem
solid modelling
structural analysis
stress
deformations
vibrations
title Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications
title_full Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications
title_fullStr Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications
title_full_unstemmed Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications
title_short Mechanical Design of Innovative Electromagnetic Linear Actuators for Marine Applications
title_sort mechanical design of innovative electromagnetic linear actuators for marine applications
topic linear actuator
conceptual design
mechanical design
fem
solid modelling
structural analysis
stress
deformations
vibrations
url https://doi.org/10.1515/eng-2017-0033
work_keys_str_mv AT musciaroberto mechanicaldesignofinnovativeelectromagneticlinearactuatorsformarineapplications