Vibration Response of Soil under Low-Frequency Vibration Using Discrete Element Method

• DOI: 10.20944/preprints202309.0871.v1
• Publication Date: 2023-09-14T00:43:56Z
• Authors: Lipengcheng Wan; Yonglei Li; Jinyu Song; Xiang Ma; Xiangqian Dong; Chao Zhang; Jiannong Song
• Keywords: Agriculture (General); transmission; low frequency; vibration response; discrete element method; soil; S1-972

The vibration response of soil is a key property in the field agricultural tillage. Vibration components tillage machinery are generally used to reduce resistance and improve work efficiency, pressure variation under low-frequency will affect fragmentation dispersion farmland soil. However, gradient variation, frequency domain response, effective transmission range unclear. A new method based on DEM (Discrete Element Method) presented study vibration. Bench test results showed that peak positively correlates with attenuates rapidly at distance 100 250 mm. data were also selected determine simulation model parameters. Amplitude, frequency, depth as factors single-factor tests, their effects pressure, analyzed. positive relationship between factors. increases maximum 19.02 kPa/mm 50 amplitude, correlate dominant amplitude. main independent amplitude depth. At mm, approximately twice 7–11 Hz equal 13–15 Hz. Multiple exponential functions fit attenuation function, obtaining an 347.15 550.37 mm for 5kPa cut-off pressure. For 300 vertical shear wave diffusion angle greater than horizontal angle. clarifies vibration, which helps design type soil-engaging match parameters energy saving reduction