Test and analysis of walnut (Juglans regia L.) tree vibration transfer based on a low-frequency shaking table

• Published in: Industrial crops and products Vol. 216; p. 118797
• Main Authors: Cao, Jiale, An, Jianshuo, Xu, Daochun, Bai, Xiaopeng, Li, Wenbin, Chen, Chongchong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.09.2024
• Subjects: Low-frequency shaker; Proportional acceleration; Tree parameters; Vibration acceleration; Vibration parameters; Vibration parameters; Low-frequency shaker; Tree parameters; Vibration acceleration; Proportional acceleration
• ISSN: 0926-6690; 1872-633X
• DOI: 10.1016/j.indcrop.2024.118797

Clarifying the low-frequency vibration transfer law of fruit trees is an important prerequisite for studying the intelligent harvesting operation of a low-frequency shaker. Through a vibration transmission test involving vibration parameters, tree parameters, and proportional acceleration, this study found that vibration frequency, amplitude, pre-tension, and rope length were the most significant influencing factors of proportional acceleration. Among them, amplitude and pre-tension have positive effects on proportional acceleration, vibration frequency and rope length have negative effects on proportional acceleration, and the interaction between amplitude and vibration frequency has significant effects on proportional acceleration. The proportional acceleration has a maximum response of 8.12 m/s2 when the vibration frequency is 6.86 Hz, the amplitude is 64.92 mm, the pre-tension is 1007.02 N, and the rope length is 6 m. The results of the study can guide research on and development of a low-frequency intelligent shaking machine as well as its field operation. [Display omitted] •Analyze the response laws of vibration parameters and tree parameters.•Explore the importance of each factor in depth.•Determine the interaction response between the factors.•Optimize the best response value for vibration transmission.