Finite Element Analysis of a PTO Shaft Used in an Agricultural Tractor

Celik, H Kursat and Cinar, Recep and Kunt, Gokhan and Rennie, Allan Edward Watson and Ucar, Mehmet and Akinci, Ibrahim (2018) Finite Element Analysis of a PTO Shaft Used in an Agricultural Tractor. Ergonomics International Journal, 2 (3). ISSN 2577-2953

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Abstract

This study describes a finite element method (FEM) based deformation simulation procedure for a power take off (PTO) shaft in an agricultural tractor. The agricultural tractor is a mobile power source in agricultural fields. The Agricultural tractor transmits power to the working implement through several systems independently. Most especially, rotary elements used in agricultural machinery take the required power and movement from the tractor take off (PTO) shaft. During this operation, the PTO shaft experiences a high dynamic loading condition such as excessive instant (impact) loading. This may cause an undesired failure case for the PTO shaft. In order to prevent such undesired failures, loading condition and stress distribution on the component should be described properly; however, an accurate description of the structural stress distribution on the shaft becomes an important problem. In this content, a case study was carried out on a failed PTO shaft, as described in this paper. The aim of this case study is to exhibit the stress distribution on the PTO shaft through finite element analysis under a torsional loading case which may be considered as the main cause of the failure. Visual outputs from the simulation results revealed a better understanding of the failure zone on the shaft. The maximum equivalent stress magnitude obtained from the simulation was 632.08 [MPa] (which was lower than the fracture point) on the shaft under maximum PTO torque, however, it was concluded that the main reason for the failure was excessive shock torsional loading. This work contributes to further research into usage of numerical method based deformation simulation studies for the transmission elements used in agricultural tractors/machinery.

Item Type:
Journal Article
Journal or Publication Title:
Ergonomics International Journal
Additional Information:
The abstract of this study was published and presented at the XIX World Congress of the International Commission of Agriculture and Biosystems Engineering (CIGR) (22-25 April 2018, Antalya, Turkey).
Subjects:
ID Code:
126326
Deposited By:
Deposited On:
24 Jul 2018 12:12
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Sep 2020 04:18