Diagnosis of EMD645 diesel engine connection rod failure through modal testing and finite element modeling

Rezvani, Mohammad Ali; Javanmardi, D.; Mostaghim, P.

doi:10.1016/j.engfailanal.2018.05.005

Cited by 10 publications

(4 citation statements)

References 8 publications

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“…They estimated the critical buckling stress using the Merchant-Rankine and slider-crank approaches and resulted that suitable Buckling Safety Factor (BSF) should be regarded based on the maximum buckling stress to avoid such failures. Rezvani et al [14] analyzed the connecting rod of a failed locomotive engine using a theoretical procedure, experimental modal testing, and FEMbased simulation. They found the natural frequencies and mode shapes of the component and calculated the critical buckling forces.…”

Section: Figure 1 Individual Components Of the Assembly Including Pis...mentioning

confidence: 99%

Thermo-Mechanical Analysis of a Typical Vehicle Engine Using PTC-Creo

Mahmoudi

2022

j. of mech. mater. and mech. res.

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In this work, a typical vehicle engine is modeled within PTC-Creo software, and its thermal, mechanical, and thermo-mechanical performance are evaluated. This is followed by the vibrational, fatigue, and buckling analysis of the assembly of components, which are the predominant failure causes. The results show that the least temperature gradient occurs in the center of the pin, which connects the piston to the connecting rod, the maximum displacement is seen just below the piston head, and the thermo-mechanical failure is caused mostly (about 85%) by the mechanical load rather than the thermal one. Also, in fatigue analysis, the minimum and maximum values for the safety factor are 0.63 and 5, respectively. The results can prevent the reoccurrence of similar failures and help the enhancement of the components’ design and manufacturing process.

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Section: Figure 1 Individual Components Of the Assembly Including Pis...mentioning

confidence: 99%

Thermo-Mechanical Analysis of a Typical Vehicle Engine Using PTC-Creo

Mahmoudi

2022

j. of mech. mater. and mech. res.

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“…[13]- [15]. Rezvani et al [16] studied the catastrophic deformation of the 645E3B engine connecting rod due to unknown reasons. The used connecting rod has 42CrMo4 material.…”

Section: Article Info Abstractmentioning

confidence: 99%

Investigation of failure mechanism of a DCI engine connecting rod

Gök¹,

Cihan²

2021

European Journal of Technic

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“…M.A. Rezvani used a combination of theoretical calculation and finite element numerical simulation to study the reasons for the failure of the connecting rod of the GM-GT26 diesel engine [7] . Sahara et al analyzed the different components of the internal combustion engine.…”

Section: Introductionmentioning

confidence: 99%

Stress-strain analysis and optimization design of diesel engine connecting rod based on multi-objective optimization

Zhang¹,

Cui²

2022

International Conference on Mechanisms and Robotics (ICMAR 2022)

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As a key component of a diesel engine, the connecting rod will bear the reciprocating stress of tension and compression during operation, and its performance is very important for the safe operation of the diesel engine. This paper uses the finite element analysis software ANSYS to analyze the stress and deformation of the designed connecting rod at the top dead center of the intake stroke and the top dead center of the work stroke. Through the method of multi-objective optimization, the quality, stress and deformation are improved and optimized at the same time. The results show that: 1) The designed connecting rod meets the requirements of strength and deformation; 2) The mass of the optimized connecting rod is reduced by about 20%; 3) The stress and deformation of the top dead center of the intake stroke are respectively reduced by 33.8% and 42.2%; 4) The stress and deformation of the top dead center working condition of the work stroke have been reduced by 29.0% and 45.3%.

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Diagnosis of EMD645 diesel engine connection rod failure through modal testing and finite element modeling

Cited by 10 publications

References 8 publications

Thermo-Mechanical Analysis of a Typical Vehicle Engine Using PTC-Creo

Thermo-Mechanical Analysis of a Typical Vehicle Engine Using PTC-Creo

Investigation of failure mechanism of a DCI engine connecting rod

Stress-strain analysis and optimization design of diesel engine connecting rod based on multi-objective optimization

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