Metallurgical Analysis Explains the Failure Mechanism of a Farm Tractor’s PTO + PTO’s Drive Shaft, Assisting in the Evaluation of Economical Consequences of Similar Events

Triantafyllidis, Georgios; Zagkliveris, Dimitrios I.; Koliotsas, Panagiotis

doi:10.1007/s11668-015-9924-9

Cited by 5 publications

(1 citation statement)

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“…In this context, optimum design and manufacturing issues for agricultural machinery/equipment in the industry should be considered; however, experiencing the failures on the machinery/equipment used in the agricultural operations is an unavoidable matter. Every year people are seriously injured, or even killed, in accidents involving failures of machine elements used in agricultural machinery systems such as power take-off (PTO) shafts [2].…”

Section: Introductionmentioning

confidence: 99%

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

Çelik¹,

Cinar²,

Kunt³

et al. 2018

EOIJ

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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.

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Section: Introductionmentioning

confidence: 99%