Crack analysis on the toothed mating surfaces of a diesel engine connecting rod

He, Baiyan; Shi, Guangda; Sun, Junling; Chen, Si-zhuan; Nie, Rui

doi:10.1016/j.engfailanal.2013.09.004

Cited by 17 publications

(6 citation statements)

References 12 publications

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“…Furthermore, based on the FEM results, AISI 4737 and 35CrMo steels are suggested for the production of the connecting rod complying with the final design after modifications to tolerate the levels of stresses developed under maximum pressure of the combustion chamber. According to the properties of AISI 4737 and 35CrMo steels represented in Table 5, both materials have yield stresses over the maximum stresses developed under the maximum combustion pressure [8].…”

Section: Modification Of the Design Of Connecting Rod Based On The Rementioning

confidence: 99%

“…The authors used the results of the stress analyses to modify the design of the connecting rod. He et al [8] studied the causes of crack initiation and fracture at the contact faces of connecting rod and cap of the diesel engine utilized in marine generators. They investigated the effects of applied loads of connecting bolts on the mechanism of cracking caused by loading and fatigue through finite element simulation and comparison of the results with microscopic observations.…”

Section: Introductionmentioning

confidence: 99%

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Design of high duty diesel engine connecting rod based on finite element analysis

Seyedzavvar

2018

J Braz. Soc. Mech. Sci. Eng.

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Connecting rod of an internal combustion engine is subjected to complex loading conditions. These mainly include the forces created through combustion in the combustion chamber of cylinder causing compression and bending of the connecting rod. This paper reports the results of a project objected to design the connecting rod of a heavy duty marine diesel engine and to modify its structural details based on finite element analysis. For this purpose, the initial design of the connecting rod was conducted by CATIA software and imported as stp file in Abaqus software. Results of the FEM model were utilized to modify the CAD model based on critical stress spots and magnitude of deformations of different sections of analyzed connecting rod model. Also, these results were used to introduce appropriate materials to tolerate the magnitude of forces developed under maximum combustion pressure of 190 bar. Further FEM analyses were carried out to modify the design in order to reduce the weight of final model of connecting rod. Results of finite element analysis of the final model revealed that the levels of stresses of the designed connecting rod are reduced significantly below the yield stresses of suggested materials for production of the connecting rod.

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Section: Modification Of the Design Of Connecting Rod Based On The Rementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of high duty diesel engine connecting rod based on finite element analysis

Seyedzavvar

2018

J Braz. Soc. Mech. Sci. Eng.

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“…Accordingly, properly designed and formed bolted joints can be used in the most critical applications [1]. Considering the vital function they have in a large number of mechanical structures, the study of their behaviour in service [19], as well as failure and the causes that led to their failure, are the subject of a large number of scientific works [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

The influence of thread screw parameters on the efficiency of threaded joints

Ristivojević¹,

Dimić²,

Kolarević³

2023

tribomat

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Non-movable threaded joints (bolted connections) and movable threaded joints (power screws) are subassemblies that have a large field of application in the mechanical industry. With these subassemblies, a part of the input energy in the form of torque is spent on overcoming friction on the contact sliding surfaces. These energy losses mostly depend on the geometric and tribological characteristics of the threaded joint. Compared to bolted joints, power screws consume significantly more energy to perform their elementary function. Bolted joints have a much larger field of application in the mechanical industry. In the case of bolted joints metric thread is the most common, and in power screws, threaded joints with a trapezoidal thread. Accordingly, this paper analyses the effects of the coefficient of friction and geometric and kinematic parameters on the energy efficiency of trapezoidal and metric threaded joints. The performed analysis can be used to select the optimal parameters of the threaded joints from the aspect of energy efficiency during the design of new or reconstruction of existing machine structures.

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“…The reciprocating motion of the piston may damage the connecting rod [2] [3]. The damage leads to a decrease in petrol engine efficiency.…”

Section: Introductionmentioning

confidence: 99%

Failure simulation of connecting rods without pistons using finite element method

Andoko

Saputro

2018

MATEC Web Conf.

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The combustion of fuel takes place inside the cylinder with the oxygen of the air, producing a very high-pressure combustion gas. The combustion gas does work on the piston and then passes through the connecting rod to the crankshaft. The reciprocating translational motion of the piston may damage the connecting rod. A simulation using ANSYS was performed on each of the three connecting rod materials. Results showed that the maximum deformation occurred in the connecting rod made of structural steel, aluminium alloy, and titanium alloy was 0.239 mm, 0.672 mm, and 0.496 mm, respectively.

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Crack analysis on the toothed mating surfaces of a diesel engine connecting rod

Cited by 17 publications

References 12 publications

Design of high duty diesel engine connecting rod based on finite element analysis

Design of high duty diesel engine connecting rod based on finite element analysis

The influence of thread screw parameters on the efficiency of threaded joints

Failure simulation of connecting rods without pistons using finite element method

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