Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis

Abstract In this study, gearbox radiated noise was successfully reduced through housing shape optimization. First, dynamic and structural–acoustic coupled analysis models of an agricultural UTV gearbox were developed. Then, the test equipment was configured to match that of the simulation model, and...

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Main Authors: Beom-Soo Kim, Hyun-Woo Han, Woo-Jin Chung, Young-Jun Park
Format: Article
Language:English
Published: Nature Portfolio 2024-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-54606-8
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author Beom-Soo Kim
Hyun-Woo Han
Woo-Jin Chung
Young-Jun Park
author_facet Beom-Soo Kim
Hyun-Woo Han
Woo-Jin Chung
Young-Jun Park
author_sort Beom-Soo Kim
collection DOAJ
description Abstract In this study, gearbox radiated noise was successfully reduced through housing shape optimization. First, dynamic and structural–acoustic coupled analysis models of an agricultural UTV gearbox were developed. Then, the test equipment was configured to match that of the simulation model, and a test was conducted. The analysis and test results showed errors within 0.1 dB for vibration and 0.2 dB(A) for noise, indicating that the models were reliable. The housing design was then optimized using topology optimization based on the developed structural–acoustic coupling analysis model. The sound pressure level around the housing was used as an objective function for topology optimization. The optimal distribution of materials for the housing was also derived to reduce the radiated noise. Lastly, the housing rib was designed based on the optimization result, and an improvement in the radiated noise by approximately 2.43 dB(A) was confirmed in the operation area.
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spelling doaj.art-40804781065948c3beaf3c4eb3a5622a2024-03-05T18:41:29ZengNature PortfolioScientific Reports2045-23222024-02-0114111610.1038/s41598-024-54606-8Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysisBeom-Soo Kim0Hyun-Woo Han1Woo-Jin Chung2Young-Jun Park3Department of Biosystems Engineering, College of Agriculture and Life Science, Seoul National UniversityDepartment of Biosystems Engineering, College of Agriculture and Life Science, Seoul National UniversityDepartment of Biosystems Engineering, College of Agriculture and Life Science, Seoul National UniversityDepartment of Biosystems Engineering, College of Agriculture and Life Science, Seoul National UniversityAbstract In this study, gearbox radiated noise was successfully reduced through housing shape optimization. First, dynamic and structural–acoustic coupled analysis models of an agricultural UTV gearbox were developed. Then, the test equipment was configured to match that of the simulation model, and a test was conducted. The analysis and test results showed errors within 0.1 dB for vibration and 0.2 dB(A) for noise, indicating that the models were reliable. The housing design was then optimized using topology optimization based on the developed structural–acoustic coupling analysis model. The sound pressure level around the housing was used as an objective function for topology optimization. The optimal distribution of materials for the housing was also derived to reduce the radiated noise. Lastly, the housing rib was designed based on the optimization result, and an improvement in the radiated noise by approximately 2.43 dB(A) was confirmed in the operation area.https://doi.org/10.1038/s41598-024-54606-8
spellingShingle Beom-Soo Kim
Hyun-Woo Han
Woo-Jin Chung
Young-Jun Park
Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis
Scientific Reports
title Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis
title_full Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis
title_fullStr Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis
title_full_unstemmed Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis
title_short Optimization of gearbox housing shape for agricultural UTV using structural–acoustic coupled analysis
title_sort optimization of gearbox housing shape for agricultural utv using structural acoustic coupled analysis
url https://doi.org/10.1038/s41598-024-54606-8
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