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Trends in Applied Sciences Research
Year: 2011  |  Volume: 6  |  Issue: 2  |  Page No.: 174 - 181

Fatigue Analysis of Hydraulic Pump Gears of JD 1165 Harvester Combine through Finite Element Method

H.S. Hassani, A. Jafari, S.S. Mohtasebi and A.M. Setayesh    

Abstract: Throughout the present research, the gears fatigue of the hydraulic pump for the principal circuit in JD 1165 harvester combine was investigated through the finite element method and using contact analysis for precise determination of the contact region of the engaged teeth so that their lifespan was estimated. For this purpose, first, the gears were modelled and with applying material specifications, contact and fatigue analysis were carried out sequentially utilising ANSYS software. The reason for performing this research was to study the intended gears behavior affected by fatigue phenomenon due to the cyclic loadings and to consider the results for more savings in time and costs, as two very significant parameters relevant to manufacturing. The results indicate that with fully reverse loading, one can estimate longevity of a gear as well as find the critical points that more possibly the crack growth initiate from. For the investigated gears, the most critical points were detected as nodes numbered 36573 and 37247. Furthermore, the allowable number of load cycles and using fully reverse loading was gained 0.9800E+07. It is suggested that the results obtained can be useful to bring about modifications in the process of the above-mentioned gears manufacturing.

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