Deflection Characteristics of the Rice Stalk in Harvesting Operation by Combine for Multi-crops
2003
Kim, Y.K. | Hong, J.T. | Choe, J.S. (National Agricultural Mechanization Research Institute, Suwon, Republic of Korea)
Flexural rigidity and deflection characteristics of rice stalks were studied to investigate the mechanical interaction between a rice stalk and a combine reel in harvesting.Deflection of a rice stalk caused by reel operation is so large that conventional equation of small deflection for elastic beam cannot be applied to the study of deflection characteristics. Therefore, an equation of large deflection for elatic beam was introduced in this study. Feasibility of this equation was examined by comparing theoretical calculation with the measrued results for piano wire, and by the relationship between deflection and load acting on a rice stalk which was presumed by this equation.
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