TY - JFULL AU - M. Azadbakht and M. E. Shayan and H. Jafari and E. Ghajarjazi and A. Kiapei PY - 2014/1/ TI - Factor Resistance Comparison of a Long Shaft in 955 and 1055 John Deere Grain Combine T2 - International Journal of Mechanical and Mechatronics Engineering SP - 2120 EP - 2126 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/10001342 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 96, 2014 N2 - Transmission shafts are affected by various forces, for example, during acceleration or sudden breaks, bending during transportation, vertical forces that lead to cuts. One of the main failures in combines is breaking shaft which repairmen refer it. Structural resistance of canal against torque is very important in the beginning of the movement. For analyzing stress, a typical sample from a type of combine was selected, called JD955 combine. Long shaft in this combine was analyzed with finite element method by Ansys13 generic package under static load. Conducted analysis showed that there is a maximum stress in contact surfaces of indentations and also in place of changing diameter. Safety factor value is low in parts of the shaft and this increases the probability of failure at these points. To improve the conditions with the least cost and an approach of product improvement, using alternative alloy is important. ER -