Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox
As the demand for agricultural electric vehicles increases, it is becoming important to conduct noise reduction in consideration of the characteristics of an electric powertrain. This study was conducted to optimize the shape design of gearbox housing for radiated noise reduction of an agricultural...
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MDPI AG
2020-11-01
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Series: | Applied Sciences |
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Online Access: | https://www.mdpi.com/2076-3417/10/23/8414 |
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author | Gwan-Hee Son Beom-Soo Kim Seung-Je Cho Young-Jun Park |
author_facet | Gwan-Hee Son Beom-Soo Kim Seung-Je Cho Young-Jun Park |
author_sort | Gwan-Hee Son |
collection | DOAJ |
description | As the demand for agricultural electric vehicles increases, it is becoming important to conduct noise reduction in consideration of the characteristics of an electric powertrain. This study was conducted to optimize the shape design of gearbox housing for radiated noise reduction of an agricultural electric vehicle gearbox. The noise and vibration of the gearbox were measured considering the noise characteristics of the electric vehicle gearbox, which radiates high-frequency pure tone noise. The main noise source radiated by the structural vibration of the gearbox housing was identified and considered when modeling the loading conditions in the numerical analysis. To improve the reliability, the finite element (FE) model was updated and validated. Internal machine elements were modeled as a substructure through a reduced-order modeling method to reduce the computing time and apply a constant gear excitation force. The weak areas of structure were determined and it was used as the design area for optimization. The topology optimization technique was used to reduce the equivalent radiated power (ERP) which was used as an indicator of radiated noise level. The maximum value of the ERP decreased under all operating conditions at the rated speed. |
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institution | Directory Open Access Journal |
issn | 2076-3417 |
language | English |
last_indexed | 2024-03-10T14:32:40Z |
publishDate | 2020-11-01 |
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series | Applied Sciences |
spelling | doaj.art-05f5278d1f1d4846a26015fd91da0c4a2023-11-20T22:24:14ZengMDPI AGApplied Sciences2076-34172020-11-011023841410.3390/app10238414Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle GearboxGwan-Hee Son0Beom-Soo Kim1Seung-Je Cho2Young-Jun Park3Department of Biosystems Engineering, College of Agriculture and Life Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, KoreaDepartment of Biosystems Engineering, College of Agriculture and Life Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, KoreaSmart Agricultural Machinery R&D Group, Korea Institute of Industrial Technology, 119 Jipyeongseon sandan 3-gil, Baeksan-myeon, Gimje-si 54325, KoreaDepartment of Biosystems Engineering, College of Agriculture and Life Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, KoreaAs the demand for agricultural electric vehicles increases, it is becoming important to conduct noise reduction in consideration of the characteristics of an electric powertrain. This study was conducted to optimize the shape design of gearbox housing for radiated noise reduction of an agricultural electric vehicle gearbox. The noise and vibration of the gearbox were measured considering the noise characteristics of the electric vehicle gearbox, which radiates high-frequency pure tone noise. The main noise source radiated by the structural vibration of the gearbox housing was identified and considered when modeling the loading conditions in the numerical analysis. To improve the reliability, the finite element (FE) model was updated and validated. Internal machine elements were modeled as a substructure through a reduced-order modeling method to reduce the computing time and apply a constant gear excitation force. The weak areas of structure were determined and it was used as the design area for optimization. The topology optimization technique was used to reduce the equivalent radiated power (ERP) which was used as an indicator of radiated noise level. The maximum value of the ERP decreased under all operating conditions at the rated speed.https://www.mdpi.com/2076-3417/10/23/8414agricultural electric vehiclegear whine noiseFE model updatetopology optimization |
spellingShingle | Gwan-Hee Son Beom-Soo Kim Seung-Je Cho Young-Jun Park Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox Applied Sciences agricultural electric vehicle gear whine noise FE model update topology optimization |
title | Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox |
title_full | Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox |
title_fullStr | Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox |
title_full_unstemmed | Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox |
title_short | Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox |
title_sort | optimization of the housing shape design for radiated noise reduction of an agricultural electric vehicle gearbox |
topic | agricultural electric vehicle gear whine noise FE model update topology optimization |
url | https://www.mdpi.com/2076-3417/10/23/8414 |
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