Fatigue and Harmonic Analysis of a Diesel Engine Crankshaft Using ANSYS

Muhammad, Aisha; Ali, Mohammed A. H.; Shanono, Ibrahim Haruna

doi:10.1007/978-981-15-0950-6_56

Cited by 7 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This property was discussed in an earlier publication of the authors [18,19]. In the case analyzed, where the supports are positioned at different heights, the amplitude spectrum of the outline of eccentricity (Figure 3) has harmonic components with even and odd numbers [1,4,[24][25][26][27][28][29].…”

Section: Determination Of Geometric Deviations Of Crankshafts With Li...mentioning

confidence: 62%

Eliminating the Influence of Support Conditions on Geometric Shape Measurements of Large Crankshafts of Marine Engines

et al. 2022

View full text Add to dashboard Cite

This paper presents an analysis of the possibility of determining the geometric deviations of large crankshafts of engines using both conventional and alternative fuels. Experimental tests were carried out on a test stand adapted to measure crankshafts seated with their main journals on a set of fixed supports with the possibility of height positioning and using a reference measuring system. A comparative assessment of the results was made for a selected crankshaft using the intercorrelation factor ρ, whose value ranged from 0.8982 to 0.9751. It was concluded that the proposed procedures can be useful in assessing of the geometric condition of the crankshafts with axial position deviations and with limited possibilities of their detection resulting from the adopted support conditions with a set of supports positioned at different heights. Experimental tests were supplemented with FE-analyses of the crankshaft supported at multiple locations and loaded with deviations in the position of the main journal axes.

show abstract

Section: Determination Of Geometric Deviations Of Crankshafts With Li...mentioning

confidence: 62%

Eliminating the Influence of Support Conditions on Geometric Shape Measurements of Large Crankshafts of Marine Engines

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Failures of engineering structures make analysis to become very significant to ascertain the safety of the structure because a failure of the whole or part of the structure leads to high risk of life and financial loss [22]. This section presents the analysis result performed.…”

Section: Resultsmentioning

confidence: 99%

Finite Element Analysis of the Heat Transfer in a Piston

Muhammad

Haruna²

2020

JMMST

Self Cite

View full text Add to dashboard Cite

The gas expansion process that takes place in a piston cylinder assembly have been used in numerous applications. However, the time-dependent process of heat transfer is still not fully apprehended as the expansion processes are complex and difficult due to the unsteady property of the turbulent flow process. Internal combustion Engines(ICE) designs are conducted with the aim of achieving higher efficiency in the thermal characteristics. To optimize these designs, numerical simulations are conducted. However, modelling of the process in terms of heat transfer and combustion is complex and challenging. For a designer to understand, calculate and quantify the thermal stresses and heat losses at different sections of the structure, understanding the piston-cylinder wall is needed. This study carried out a numerical simulations based on Finite Element Method (FEM) to investigatethe stresses in the piston, and temperature after loading. Appropriate boundary conditions were set on different surfaces for FE model. The study includes the effects of the thermal conductivity of the material of piston, cylinder wall, and connecting rod. Results show the maximum Von-misses stress occurs on the piston head with a value of 3486. 1MPa. The maximum temperature of the piston head and cylinder wall stands at 68.252 and 42.704 degree Celsius respectively.

show abstract

“…In addition, this issue is treated marginally for large components of machinery. This is particularly true for the so-called slender and large-sized components that are of low and variable rigidity with high susceptibility to flexural deformations [7,8]. Important examples of such components are crankshafts of internal combustion diesel engines-the primary units of a main propulsion, ancillary engines and generator sets [9].…”

Section: Introductionmentioning

confidence: 99%

“…The main system comprises four subsystems: flexible support block, measuring block, turning gear block and the data processing block. The shaft's flexible support block in the current test rig consists of pneumatic supports (4) fitted with V-block heads (5), force sensors (6) and solenoid valves (7). The measuring block consists of a trolley (8), a tripod and a measuring sensor mounted on the trolley.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Model-Based Control of Reaction Forces at the Supports of Large-Size Crankshafts

Chybowski

Nozdrzykowski

Grządziel

et al. 2020

Sensors

View full text Add to dashboard Cite

A support control automation system employing force sensors to a large-size crankshaft main journals’ flexible support-system was studied. The current system was intended to evaluate the geometric condition of crankshafts in internal combustion diesel engines. The support reaction forces were changed to minimize the crankshaft elastic deflection as a function of the crank angle. The aim of this research was to verify the hypothesis that the mentioned change can be expressed by a monoharmonic model regardless of a crankshaft structure. The authors’ investigations have confirmed this hypothesis. It was also shown that an algorithmic approach improved the mathematical model mapping with the reaction forces due to faster and more accurate calculations of a phase shift angle. The verification of the model for crankshafts with different structural designs made it possible to assess how well the model fits the coefficients of determination that were calculated with the finite element analysis (FEA). For the crankshafts analyzed, the coefficients of determination R2 were greater than 0.9997, while the maximum relative percentage errors δmax were up to 1.0228%. These values can be considered highly satisfactory for the assessment of the conducted study.

show abstract

Fatigue and Harmonic Analysis of a Diesel Engine Crankshaft Using ANSYS

Cited by 7 publications

References 6 publications

Eliminating the Influence of Support Conditions on Geometric Shape Measurements of Large Crankshafts of Marine Engines

Eliminating the Influence of Support Conditions on Geometric Shape Measurements of Large Crankshafts of Marine Engines

Finite Element Analysis of the Heat Transfer in a Piston

Evaluation of Model-Based Control of Reaction Forces at the Supports of Large-Size Crankshafts

Contact Info

Product

Resources

About