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Journal of Failure Analysis and Prevention

, Volume 19, Issue 6, pp 1666–1672 | Cite as

Simulation and Mechanical Stress Analysis of the Lower Link Arm of a Tractor Using Finite Element Method

  • Ahmad Jahanbakhshi
  • Kobra HeidarbeigiEmail author
Technical Article---Peer-Reviewed
  • 24 Downloads

Abstract

The lower link arms are used for attaching tools to agricultural tractors, and different forces act on those while working. Awareness about the safety and deformed shape of the lower link under these forces can help us to reduce failures and financial losses. In this study, the lower arms of MF399 and MF285 tractors were simulated and mechanical analysis was discussed using the finite element method. Three-dimensional models for both of the lower arms were designed using reverse engineering, and constraints, boundary conditions and loads were applied on the models considering the tensile force at the maximum work depth of the equipment. Then, the finite element method was used for static, modal and fatigue analysis in ANSYS software and then safety factor obtained for the lower arms. The FEM of static analysis results showed that the maximum value of Von-Mises stress occurred at the junction point of the lower arms to the attachments. These results indicate the lower arm is safe enough for working with a usual furrower and chisel plow, but while working with a drill planter, the possibility of breaking is higher. Also to prevent resonance frequency, the natural frequencies of the lower arms were calculated using modal analysis. Fatigue analysis for the lower arms showed that the probability of failure is high around the hole of inhibitory chains. These results can be useful to optimize design process of the lower arms.

Keywords

MF tractor Lower arm FEM Static analysis Dynamic analysis 

Notes

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Copyright information

© ASM International 2019

Authors and Affiliations

  1. 1.Department of Biosystems EngineeringUniversity of Mohaghegh ArdabiliArdabilIran
  2. 2.Department of Biosystems EngineeringIlam UniversityIlamIran

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