Power Requirement Estimation for Cutting Paddy Crop Using a Standard Cutter Bar

Autor: Hifjur Raheman, Arjya Utkalini Sahoo
Rok vydání: 2020
Předmět:
Zdroj: Journal of The Institution of Engineers (India): Series A. 101:477-484
ISSN: 2250-2157
2250-2149
DOI: 10.1007/s40030-020-00444-6
Popis: A laboratory setup simulating the cutting process of a vertical conveyer reaper in the field was developed to study the effect of crop and machine parameters like the number of hills, knife speed, forward velocity of machine on cutting torque, and power requirement for cutting paddy crop. Experiments were conducted by cutting paddy crops at three different levels each of knife speed, forward velocity, and stem area (number of hills). The statistical analysis of data obtained showed that cutting torque was mostly influenced by stem area than knife speed and forward velocity. A minimum knife velocity of 1.8 m/s was required for cutting paddy stems during harvesting. The forward velocity of the machine should be less than 1.1 km/h to prevent excess loading on the knife. A linear model incorporating knife speed and forward velocity with a coefficient of determination of 0.89 was developed to predict the actual torque required to cut paddy crops with different stem areas. A model for predicting total power required to carry out cutting was also developed which included the power required to overcome frictional (idle) torque and cutting torque. Model estimating the total power required for cutting paddy was validated by comparing the measured and estimated values with an average absolute variation of 14.32%.
Databáze: OpenAIRE
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