자주식 마늘, 양파 범용 수집기 소요동력 시뮬레이션 해석 모델 개발

초록

This study aimed to develop a simulation model for a self-propelled multi-use collector designed for garlic and onion harvesting. The collector features a rated output of 25.4 kW and consists of a crawler-based driving unit, along with collecting and sorting units powered by hydraulic motors. The load measurement system was designed to assess the flow rate and pressure of the hydraulic motor, as well as the torque and rotational speed of the drive sprocket. Field experiments for data acquisition were conducted at actual garlic harvest sites, varying both collection and forward driving speeds. The sampling rate was set at 100 Hz, and real-time load measurements were taken across nine experimental trials. The simulation model was developed in AMESim, based on the specifications of the collector, and validated using real-world measurement data. The predicted total power requirement from the simulation model deviated by 0.3% to 5.8% from the measurements obtained in the field. The validation results indicated R² values of 0.985, 0.899, 0.994, and 0.981 for predicting the power requirements of the collecting, sorting, driving units, and total power, respectively. The simulation model developed in this study is expected to facilitate performance prediction and optimal design under various working conditions.

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