Development and modeling of a slope insensitive combine cleaning shoe
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Since 1905, the Department of Agricultural Engineering, now the Department of Agricultural and Biosystems Engineering (ABE), has been a leader in providing engineering solutions to agricultural problems in the United States and the world. The department’s original mission was to mechanize agriculture. That mission has evolved to encompass a global view of the entire food production system–the wise management of natural resources in the production, processing, storage, handling, and use of food fiber and other biological products.
History
In 1905 Agricultural Engineering was recognized as a subdivision of the Department of Agronomy, and in 1907 it was recognized as a unique department. It was renamed the Department of Agricultural and Biosystems Engineering in 1990. The department merged with the Department of Industrial Education and Technology in 2004.
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1905–present
Historical Names
- Department of Agricultural Engineering (1907–1990)
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- College of Agriculture and Life Sciences (parent college)
- College of Engineering (parent college)
- Department of Industrial Education and Technology, (merged, 2004)
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Abstract
An experimental cleaning shoe was developed to compensate for sloped land by adjustment of shake speed, fan speed, and shake geometry. Grain loss on the cleaning shoe decreased compared to a conventional cleaning shoe exposed to similar conditions. Average grain losses of 0.710% and 6.560% on 5- and 10-degree side slopes in corn were reduced to 0.118% and 0.256% on the same side slopes using only modified shake geometry. Similar reductions in grain loss were seen in wheat, from 7.521% and 15.272% on both side slopes to 3.941% and 4.722% using only modified shake geometry. Grain loss prediction models were developed for each crop with R2 values of 0.8111 and 0.8440. Through modification of fan and shake speeds and shake geometry to field conditions, grain loss reduced from averages of 1.276% to 0.675.