Vibration Characteristic Analysis and Structural Optimization of the Frame of a Triplex Row-Baling Cotton Picker

Jianhao Dong, Guangheng Wang, Hui Lin, Xinsheng Bi (), Zhantao Li, Pengda Zhao, Tingwen Pei and Fei Tan
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Jianhao Dong: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Guangheng Wang: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Hui Lin: Xinjiang Production and Construction Corps Eighth Division Shihezi Agricultural and Animal Husbandry Mechanization Technology Training Station, Shihezi 832003, China
Xinsheng Bi: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Zhantao Li: Shandong Swan Modernization Agricultural Machinery Equipment Co., Ltd., Jinan 250032, China
Pengda Zhao: Shandong Swan Modernization Agricultural Machinery Equipment Co., Ltd., Jinan 250032, China
Tingwen Pei: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Fei Tan: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China

Agriculture, 2023, vol. 13, issue 7, 1-20

Abstract: The frame of the cotton picker is exposed to complex and varying loads during its operation. Therefore, conducting research on the vibration characteristics of the frame is crucial. In this study, vibration tests were conducted on the main vibration sources in a cotton picker at several measuring points on the frame. An accelerometer sensor was utilized to collect the signals. Fourier analysis was applied to analyze the vibration sources, encompassing the excitation frequency and the vibration source-coupled excitation frequency. Modal tests were also conducted to validate the finite element model and determine the natural frequencies of the frame. The results showed that the natural frequencies of the frame, specifically the third-order, fourth-order, and sixth-order frequencies, were comparable to the vibration source-coupled excitation frequencies. To prevent frame resonance, the response surface method was used to optimize the frame. Based on the MOGA algorithm, scheme 4 was identified as the optimal design. Furthermore, fatigue life calculations were carried out to optimize the parts with short lifespans on the frame, thereby enhancing the working performance.

Keywords: cotton picker; vibration characteristics; modality; sensitivity; entropy weight method (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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