Determination of the friction force and energy for Karacadağ local rice cultivars for different surfaces

Abstract

The friction properties of grain products are one of the important parameters that are considered in the design oftransport, transmission and storage structures and equipment. In addition, the friction force and coefficients on different surfaces are important in the selection of the power supply required for such design of structures and in thecalculation of their actual dimensions. These are the common materials used for handling and processing of grainsand construction of storage and drying bins. In this study, the static friction force and static friction energy were measured on 4 different material surfaces (rubber, chrome, galvanized sheet and PVC) and 3 different moisture contents(9.30%, 18.50% and 29.00%) for Karacadağ Beyaz and Karacadağ Karakılçık local rice varieties. The pulling of thegrain box on the surface and the friction forces and energy were measured at a constant speed of 20 mms-1 with Llyodtester having a capacity of 2500 N. There was no significant difference between the varieties in terms of frictionalforce and friction energy (p> 0.05). However, the effect of surface material and grain moisture content was found tobe very important (p