Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method

Ji, Kuizhou; Li, Yaoming; Liu, Yanbin; Wang, Hanhao

doi:10.3390/machines14010090

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Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method

by

Kuizhou Ji

^1,2,

Yaoming Li

^1,2,*,

Yanbin Liu

^1,2 and

Hanhao Wang

^1,2

¹

School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China

²

Key Laboratory of Modern Agricultural Equipment and Technology, Jiangsu University, Ministry of Education, Zhenjiang 212013, China

^*

Author to whom correspondence should be addressed.

Machines 2026, 14(1), 90; https://doi.org/10.3390/machines14010090

Submission received: 13 December 2025 / Revised: 7 January 2026 / Accepted: 8 January 2026 / Published: 12 January 2026

(This article belongs to the Special Issue Advances in Noise and Vibrations for Machines: Second Edition)

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Abstract

To address the pronounced issue of noise and vibration within the combine harvester cab, this study proposes a hybrid simulation and experimental validation approach that integrates the pivot noise transfer function (NTF) with a finite element method (FEM)-based vibroacoustic coupling analysis. A coupled finite element model combining the cab structure and its internal acoustic cavity was developed, with the excitation path characteristics explicitly defined. The coupled interaction between structural and acoustic modes, along with its influence on noise transmission, was systematically examined. The analysis revealed a significant transmission peak near 18 Hz at critical pivot Point D under specific excitation directions, indicating strong directional sensitivity in the excitation–response relationship. Experimental validation showed that the discrepancy between simulated and measured responses, including the NTFs, remained within 15%, confirming the accuracy and applicability of the proposed method. This research offers a reliable analytical framework and practical reference for noise and vibration reduction in agricultural machinery cab design.

Keywords: acoustic–structure coupling; noise transfer function; acoustic cavity modal; vibration; noise

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MDPI and ACS Style

Ji, K.; Li, Y.; Liu, Y.; Wang, H. Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method. Machines 2026, 14, 90. https://doi.org/10.3390/machines14010090

AMA Style

Ji K, Li Y, Liu Y, Wang H. Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method. Machines. 2026; 14(1):90. https://doi.org/10.3390/machines14010090

Chicago/Turabian Style

Ji, Kuizhou, Yaoming Li, Yanbin Liu, and Hanhao Wang. 2026. "Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method" Machines 14, no. 1: 90. https://doi.org/10.3390/machines14010090

APA Style

Ji, K., Li, Y., Liu, Y., & Wang, H. (2026). Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method. Machines, 14(1), 90. https://doi.org/10.3390/machines14010090

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Measurement and Simulation Analysis of Noise and Vibration in a Combine Harvester Cab Based on Pivot Noise Transfer Function and Vibroacoustic Coupling Method

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