Novel Topology Optimization Method for Weight Reduction in Electrical Machines

This paper proposes a combined electromagnetic and mechanical topology optimization for weight reduction in electrical machines based on Finite Element Analysis (FEA) and Evolutionary Structural Optimization (ESO). The devised method is an on- off-type algorithm with adaptative mesh in which low flu...

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Main Authors: Borja Lizarribar, Borja Prieto, Miguel Martinez-Iturralde, Gurutz Artetxe
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9804701/
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author Borja Lizarribar
Borja Prieto
Miguel Martinez-Iturralde
Gurutz Artetxe
author_facet Borja Lizarribar
Borja Prieto
Miguel Martinez-Iturralde
Gurutz Artetxe
author_sort Borja Lizarribar
collection DOAJ
description This paper proposes a combined electromagnetic and mechanical topology optimization for weight reduction in electrical machines based on Finite Element Analysis (FEA) and Evolutionary Structural Optimization (ESO). The devised method is an on- off-type algorithm with adaptative mesh in which low flux density and low Von Mises stress cells are removed successively from a first machine design. With this approach, the weight of the machine can be considerably reduced without compromising the electromagnetic performance of the machine, with a reduced computation time compared to other topology optimization methods. A case study involving a 1.2 MW low-speed, permanent magnet motor is analyzed under different conditions (algorithm parameters, initial mesh, rotational speed) and used to compare the proposed method with two other topology optimization approaches.
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spelling doaj.art-f795485e27f14f4a92c565ff566660742022-12-22T00:31:03ZengIEEEIEEE Access2169-35362022-01-0110675216753110.1109/ACCESS.2022.31857419804701Novel Topology Optimization Method for Weight Reduction in Electrical MachinesBorja Lizarribar0https://orcid.org/0000-0001-5056-2384Borja Prieto1https://orcid.org/0000-0001-6635-3755Miguel Martinez-Iturralde2Gurutz Artetxe3https://orcid.org/0000-0003-2643-9372Transport and Energy Division, CEIT-Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, SpainTransport and Energy Division, CEIT-Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, SpainTransport and Energy Division, CEIT-Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, SpainTransport and Energy Division, CEIT-Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, SpainThis paper proposes a combined electromagnetic and mechanical topology optimization for weight reduction in electrical machines based on Finite Element Analysis (FEA) and Evolutionary Structural Optimization (ESO). The devised method is an on- off-type algorithm with adaptative mesh in which low flux density and low Von Mises stress cells are removed successively from a first machine design. With this approach, the weight of the machine can be considerably reduced without compromising the electromagnetic performance of the machine, with a reduced computation time compared to other topology optimization methods. A case study involving a 1.2 MW low-speed, permanent magnet motor is analyzed under different conditions (algorithm parameters, initial mesh, rotational speed) and used to compare the proposed method with two other topology optimization approaches.https://ieeexplore.ieee.org/document/9804701/Permanent magnet motorsoptimizationtopology optimizationelectrical machinesON-OFFweight reduction
spellingShingle Borja Lizarribar
Borja Prieto
Miguel Martinez-Iturralde
Gurutz Artetxe
Novel Topology Optimization Method for Weight Reduction in Electrical Machines
IEEE Access
Permanent magnet motors
optimization
topology optimization
electrical machines
ON-OFF
weight reduction
title Novel Topology Optimization Method for Weight Reduction in Electrical Machines
title_full Novel Topology Optimization Method for Weight Reduction in Electrical Machines
title_fullStr Novel Topology Optimization Method for Weight Reduction in Electrical Machines
title_full_unstemmed Novel Topology Optimization Method for Weight Reduction in Electrical Machines
title_short Novel Topology Optimization Method for Weight Reduction in Electrical Machines
title_sort novel topology optimization method for weight reduction in electrical machines
topic Permanent magnet motors
optimization
topology optimization
electrical machines
ON-OFF
weight reduction
url https://ieeexplore.ieee.org/document/9804701/
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AT gurutzartetxe noveltopologyoptimizationmethodforweightreductioninelectricalmachines