Optimising Rice Straw Bale Quality Through Vibration-Assisted Compression

Fudong Xu, Wenlong Xu, Changsu Xu, Jinwu Wang and Han Tang ()
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Fudong Xu: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Wenlong Xu: College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
Changsu Xu: College of Engineering and Technology, Southwest University, Chongqing 400715, China
Jinwu Wang: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Han Tang: College of Engineering, Northeast Agricultural University, Harbin 150030, China

Agriculture, 2025, vol. 15, issue 19, 1-28

Abstract: This study focuses on enhancing the comprehensive utilisation of rice straw by proposing a vibration-assisted compression technology, with the aim of resolving inherent issues in traditional baling, such as uneven compression and low density. This study designed a multi-point vibration-assisted compression test rig and established a vibration-enhanced compression mechanical model based on the physical properties of rice straw. By integrating discrete element method (DEM) simulations with bench testing, the optimal length-to-width ratio of 1:1 was identified for achieving superior compaction quality. A systematic analysis was conducted to evaluate the effects of vibration point configuration, frequency, and amplitude control on straw bale integrity. The results of the DEM simulations demonstrated that vibration-assisted compression significantly enhanced the compaction uniformity and stability of rice straw. The dimensional stability coefficient and pressure transmission rates of the straw bales reached 88.25% and 58.04%, respectively, validating the efficacy of the vibration-assisted compression technique. This study provides innovative concepts and theoretical foundations for optimising the design of straw baling and in-field collection equipment. It holds critical significance for advancing the resource-efficient utilisation of agricultural residues and promoting sustainable agricultural practices.

Keywords: straw; bale; multi point vibration; DEM simulation; resource utilization (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: 2025
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