Determination the Mechanical Stress on the Cutter Bar of the Harvesting Combine by Abaqus

Journal of Modern Processes in Manufacturing and Production

مقاله 4، دوره 4، شماره 2، مرداد 2015، صفحه 47-56   

نوع مقاله: Research Paper

نویسندگان

Alireza Shirneshan^{* 1}؛ Ali Hori Najafabadi¹؛ Bahram Hosseinzadeh Samani²

¹Department of Mechanical Engineering, Faculty of Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran

²Department of Mechanics of Biosystem, Shahrekord University, Shahrekord, Iran

چکیده

In this paper, to simulate mechanical stress on the cutter bar of the harvesting combine during cutting of wheat stems, first, shearing strength of the stems was measured for various moisture content levels and cutting heights. After that the cutter bar of combine was simulated by Abaqus with the specified conditions. The results of the simulation showed that with increase in moisture content of stem, shear stress on the blade is increased up to 18% due to the viscous damping effect of the moisture of stem. On the other hand, with increase in cutting height, shear stress on the blade is decreased up to 12% because of the accumulation of less mature fibers at the lower levels of stems.

کلیدواژه‌ها

Stress؛ Moisture content؛ Cutting heights؛ Shearing strength؛ Harvesting Combine