Dynamic simulation of the Reel and header of Chickpea Harvester using Abaqus

The purpose of this research is to design and model the dynamic analysis of the chickpea reel considering minimum loss. The experiments were performed in a completely randomized design with three replications and the analysis were carried out in SPSS. For the rotational speed of the reel and header For the evaluation of the machine, the independent variables included porous plate inclination at three levels (۵, ۱۱ and ۱۸ degrees), crop moisture content at three levels (۱۰, ۱۲ and ۱۴ %) and the speed of chickpea harvesting machine at three levels (۲.۸۴, ۳.۸۶ and ۲.۵ km/h). in three levels of ۸۵.۴, ۹۴.۲ and ۱۰۵.۳ rpm, the height of the reel relative to the cutting shoulder in three levels of ۳۱, ۴۱ and ۴۶ cm and the distance. Horizontal reel from the cutting bar was considered at three levels of ۲, ۴ and ۵ cm. Statistical results showed that the above factors did not have a significant effect on the amount of harvest, loss and residual chickpeas. However, the effect of horizontal distance of the reel on the rate of chickpea loss was significant at the level of one percent. In the dynamic analysis of the reel, and header the highest applied stress was observed at the contact point of the reel rods and the highest amount of strain occurred at the edges of the reel blades. As moisture increased, the rate of loss and harvested crop decreased. To optimize the weight of the header, the chickpea harvesting machine was analysed considering the forces applied to the header with a maximum number of ۵۰ cycles (topological optimization with the least error). According to the dynamic analysis, a new model for the reel of chickpea harvester machine was presented with the help of computer modeling to increase the performance of the header and reel. As moisture increased, the rate of loss and harvested crop decreased. To optimize the weight of the header, the chickpea harvesting machine was analysed considering the forces applied to the header with a maximum number of ۵۰ cycles (topological optimization with the least error). For this purpose, the header was first designed in ۳D Solid-works software and analysis by Abaqus and ANSYS softwares. The optimization process was performed in terms of the amount of energy consumed for the total volume of the header. In the proposed design, the reciprocal force between the product and the reel and header , of the pea harvesting machine reduced the fall and damage to the product.

کلیدواژه ها:

Crop loss ، Reel ، Harvest Loss ، Rotational speed ، Strain and stress ، Header Optimization