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NUMERICAL SIMULATION AND EXPERIMENTAL STUDY ON PELLETING MOTION LAW OF AGROPYRON SEEDS UNDER VIBRATION FORCE FIELD
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In order to improve the pelleting effect of Agropyron seeds, the pelleting experiment was conducted under different working parameters. In this paper, the discrete element simulation software EDED was used to establish the simulation model, and the influence of the vibration frequency of coater, the tilt angle of coater, and the rotational speed of coater on the movement trajectory of the Agropyron population were analysed. The simulation results show that the rotational speed is 40r/min, the tilt angle is 35° and the vibration frequency is 20 Hz, and the amplitude is 2 mm, the optimal trajectory of Agropyron population is obtained. The orthogonal experiment of 3 factors (vibration frequency of coater, rotational speed of coater, tilt angle of coater) and 5 levels were designed. The working parameters of pelleting Agropyron seeds were optimized by investigating the 4 indexes of compressive strength, seed rate, single seed rate and pelleting qualified rate. The results show that the vibration is the main factor affecting the compressive strength and single seed rate, the rotational speed is the main factor affecting the seed rate, and the inclination angle is the main factor affecting the pelleting rate. The optimal parameters are as follows: the rotational speed is 40r/min, the tilt angle is 35° and the vibration frequency is 20Hz.
R and D National Institute for Agricultural and Food Industry Machinery - INMA Bucharest
Title: NUMERICAL SIMULATION AND EXPERIMENTAL STUDY ON PELLETING MOTION LAW OF AGROPYRON SEEDS UNDER VIBRATION FORCE FIELD
Description:
In order to improve the pelleting effect of Agropyron seeds, the pelleting experiment was conducted under different working parameters.
In this paper, the discrete element simulation software EDED was used to establish the simulation model, and the influence of the vibration frequency of coater, the tilt angle of coater, and the rotational speed of coater on the movement trajectory of the Agropyron population were analysed.
The simulation results show that the rotational speed is 40r/min, the tilt angle is 35° and the vibration frequency is 20 Hz, and the amplitude is 2 mm, the optimal trajectory of Agropyron population is obtained.
The orthogonal experiment of 3 factors (vibration frequency of coater, rotational speed of coater, tilt angle of coater) and 5 levels were designed.
The working parameters of pelleting Agropyron seeds were optimized by investigating the 4 indexes of compressive strength, seed rate, single seed rate and pelleting qualified rate.
The results show that the vibration is the main factor affecting the compressive strength and single seed rate, the rotational speed is the main factor affecting the seed rate, and the inclination angle is the main factor affecting the pelleting rate.
The optimal parameters are as follows: the rotational speed is 40r/min, the tilt angle is 35° and the vibration frequency is 20Hz.
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