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Response Prediction and Experimental Validation of Vibration Noise in the Conveyor Trough of a Combine Harvester

Author

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  • Jianpeng Jing

    (College of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Guangen Yan

    (Xinjiang Production and Construction Corps Fourth Division Chuangjin Agricultural Development Group Co., Kokdala 835219, China)

  • Zhong Tang

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

  • Shuren Chen

    (College of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Runzhi Liang

    (College of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Yuxuan Chen

    (College of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Xiaoying He

    (College of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China)

Abstract

The noise generated by combine harvesters during operation has drawn growing attention, particularly that of the conveying trough shell, whose noise generation mechanism remains unclear. This study investigated the vibration radiation noise characteristics of conveying troughs by analyzing a chain system with 83 links using numerical simulation and experimental validation. A dynamic model of the conveyor chain system was developed, and the time domain reaction force at the bearing support was used as excitation for the trough shell’s finite element model. Modal and harmonic response analyses were performed to obtain the vibration response, which served as an acoustic boundary input for the LMS Virtual Lab. The indirect boundary element method was used to compute the radiated noise, achieving coupled modeling of chain system vibration and trough shell noise. Simulation results revealed that the maximum radiated noise occurred at approximately 112 Hz, closely matching experimental data. Comparative analysis of transmitted noise at 500 Hz and 700 Hz showed acoustic power levels of 98.4 dB and 109.52 dB, respectively. Results indicate that transmitted noise dominates over structural radiation in energy contribution, highlighting it as the primary noise path. This work offers a validated prediction model and supports noise control design for combine harvester conveying troughs.

Suggested Citation

  • Jianpeng Jing & Guangen Yan & Zhong Tang & Shuren Chen & Runzhi Liang & Yuxuan Chen & Xiaoying He, 2025. "Response Prediction and Experimental Validation of Vibration Noise in the Conveyor Trough of a Combine Harvester," Agriculture, MDPI, vol. 15(10), pages 1-24, May.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:10:p:1099-:d:1659249
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    References listed on IDEAS

    as
    1. Xinzhong Wang & Tianyu Hong & Weiquan Fang & Xingye Chen, 2024. "Optimized Design for Vibration Reduction in a Residual Film Recovery Machine Frame Based on Modal Analysis," Agriculture, MDPI, vol. 14(4), pages 1-21, March.
    2. Krzysztof Twardoch & Damian Sierociński, 2025. "An Analytical Approach to Gear Mesh Dynamics for the Sustainable Design of Agricultural Machinery Drive Systems," Sustainability, MDPI, vol. 17(5), pages 1-29, February.
    3. Zhenwei Liang & Yongqi Qin & Zhan Su, 2024. "Establishment of a Feeding Rate Prediction Model for Combine Harvesters," Agriculture, MDPI, vol. 14(4), pages 1-15, April.
    4. Lewei Chen & Zongyi Zhang & Hongbo Li & Xinpu Zhang, 2023. "Maintenance Skill Training Gives Agricultural Socialized Service Providers More Advantages," Agriculture, MDPI, vol. 13(1), pages 1-17, January.
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