Fatigue Analysis of Shovel Body Based on Tractor Subsoiling Operation Measured Data

作者：Bing Zhang, Tiecheng Bai, Gang Wu, Hongwei Wang, Qingzhen Zhu, Guangqiang Zhang, Zhijun Meng, Changkai Wen · 发表于：Agriculture · 年份：2024 · DOI：10.3390/agriculture14091604 · 被引用次数：17 · 研究领域：Soil Mechanics and Vehicle Dynamics、Mechanical Engineering and Vibrations Research、Agriculture and Farm Safety

This paper aims to investigate the effects of soil penetration resistance, tillage depth, and operating speeds on the deformation and fatigue of the subsoiling shovel based on the real-time measurement of tractor-operating conditions data. Various types of sensors, such as force, displacement, and angle, were integrated. The software and hardware architectures of the monitoring system were designed to develop a field operation condition parameter monitoring system, which can measure the tractor’s traction force of the lower tie-bar, the real-time speed, the latitude and longitude, tillage depth, and the strain of the subsoiling shovel and other condition parameters in real-time. The time domain extrapolation method was used to process the measured data to obtain the load spectrum. The linear damage accumulation theory was used to calculate the load damage of the subsoiling shovel. The magnitude of the damage value was used to characterize the severity of the operation. The signal acquisition test and typical parameter test were conducted for the monitoring system, and the test results showed that the reliability and accuracy of the monitoring system met the requirements. The subsoiling operation test of the system was carried out, which mainly included two kinds of soil penetration resistances (1750 kPa and 2750 kPa), three kinds of tillage depth (250 mm, 300 mm, and 350 mm), and three kinds of operation speed (4 km/h low speed, 6 km/h medium speed, and 8 km/h high speed), to...