Failure analysis of a diesel generator connecting rod

Juárez, Carlos Arganis; Rumiche, Francisco; Rozas, A. de Frutos; Cuisano, Julio; Lean, Paul

doi:10.1016/j.csefa.2016.06.001

Cited by 23 publications

(8 citation statements)

References 5 publications

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“…The pin-end and crank-end bores are each equipped with bearing mounts with very high accuracy. When connected to the piston, the pin-end hole must be equipped with a solid bearing (bushing), while the crank-end part which in addition to getting the compressive and thrust forces from the piston movement also gets a high temperature due to the rotational movement of the crankshaft so that the presence of the bushing is also very important [5]. The crank-end bore is separated into two parts for easy attachment to the crankshaft.…”

Section: Literature Reviewmentioning

confidence: 99%

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Investigation and failure analysis of a diesel generator connecting rod

Wilarso¹,

Noor

Ayob

et al. 2022

Mech. Eng. for Soc. and Ind.

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This article reports a failure analysis of a diesel generator set connecting rod type 3516 B that has operated for 79,678 hours. From visual observation, connecting rod cylinder #10 has changed color in the shank area. This phenomenon may represent many cases of generator failure, so an analysis to identify the root cause of the failure is needed for scientific literature. In this case, fault tree analysis, SEM-EDX, chemical composition, and microstructure testing were performed to obtain more comprehensive results. Through fault tree analysis, we found that the connecting rod damage was caused by compression leakage due to wear on the cylinder liner. Scanning Electron Microscopy (SEM) analysis shows that the piston rod material is discolored due to heat, namely the formation of iron oxide. The heat level received by the connecting rod is around 200 °C. We also found a finely formed, easy-to-clean scale where the thickness ranged from 0.00127–0.008 mm. Finally, EDX analysis showed high levels of iron (Fe) and oxygen (O) confirming that the formation of iron-oxide on the metal surface was due to the influence of heat.

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Section: Literature Reviewmentioning

confidence: 99%

“…Microstructure analysis on the connecting rods was carried out by comparing the areas that had changed color to the normal areas [5]. This microstructure test aims to determine whether there are elements of material defects from the connecting rod.…”

Section: Microstructure Analysismentioning

confidence: 99%

Investigation and failure analysis of a diesel generator connecting rod

Wilarso¹,

Noor

Ayob

et al. 2022

Mech. Eng. for Soc. and Ind.

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“…Then, the created model was exported to the ANSYS Workbench software for numerical analysis. AISI 4140 low alloy steel was defined as the material with linearelastic properties [13]. The maximum young's modulus, yield strength, ultimate strength and poison ratio of 4140 steel were 210 GPa, 1540 MPa, 2073 MPa and 0.29 %, respectively.…”

Section: Numerical Model Meshing Boundary and Loading Conditions Of T...mentioning

confidence: 99%

“…The fracture occurred at the length of the connecting rod close to the piston pin. Juarez et al [13] discussed the results of a failure analysis study in the connecting rod of a diesel engine used in electrical power generation. AISI / SAE 4140 low alloy steel material is used in the connecting rod.…”

Section: Introductionmentioning

confidence: 99%

Investigation of failure mechanism of a DCI engine connecting rod

Gök¹,

Cihan²

2021

European Journal of Technic

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“…The topography of Indonesia, which consists of hills, lowlands and highlands and the poor quality of roads may also contribute to connecting rod failure. In addition, the failure of the connecting rod may also result from other factors, such as poor fabrication and lubrication processes [2]. Connecting rod is part of an internal combustion engine that forms a link between the piston and the crankshaft [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Elastic Linear Analysis of Connecting Rods for Single Cylinder Four Stroke Petrol Engines Using Finite Element Method

Lubis¹,

Andoko²

2019

JMEST

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A connecting rod is one of the most critical parts in engine assembly which transfers energy from the piston to the crankshaft. The connecting rod mainly undergoes tensile and compressive loading under engine cyclic process. The forces acting on the connecting rod are forces due to maximum combustion pressure and forces due to the inertia of the connecting rod. This research aimed to analyze the design of the connecting rod of single-cylinder four-stroke engines. This study used CAD software for modeling and structural design. Stresses generated across all the locations of the connecting rod were evaluated using FEA Software. Elastic linear analysis of model design was also performed. The simulation results in this study have led to the conclusion that failure occurred due to the incorrect selection of materials. Among all materials under study, AA 6061 is considered the most suitable material for use at high RPM. In fact, aluminum is preferable for use at high RPM.

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Failure analysis of a diesel generator connecting rod

Cited by 23 publications

References 5 publications

Investigation and failure analysis of a diesel generator connecting rod

Investigation and failure analysis of a diesel generator connecting rod

Investigation of failure mechanism of a DCI engine connecting rod

Elastic Linear Analysis of Connecting Rods for Single Cylinder Four Stroke Petrol Engines Using Finite Element Method

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