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Figure 2 Imported piston-cylinder assembly in ANSYS The geometrical structure of the piston was established based upon the geometry of the actual design. Figure 2 shows the CAD structure exported into the ANSYS workbench. Due to the complexity of the structure, meshing sizes were different in particular sections of the structure; an advanced face sizing of 2mm was used on the cylinder, and piston head whereas the other sections were set to a default tetrahedron meshing size.

Figure 2 Imported piston-cylinder assembly in ANSYS The geometrical structure of the piston was established based upon the geometry of the actual design. Figure 2 shows the CAD structure exported into the ANSYS workbench. Due to the complexity of the structure, meshing sizes were different in particular sections of the structure; an advanced face sizing of 2mm was used on the cylinder, and piston head whereas the other sections were set to a default tetrahedron meshing size.

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Figure 1 Finite Element Analysis Process flow. ean <> Sie as ee ie Sub-dividing a complicated structure into smaller sized elements is the critical suggestion in FEA It is one of the practical CAE computational tools as engineering structures can be design based upon the layout criteria within a short period [20]. Computer-aided design software is used to design structures tha’ cannot be done manually. It also provides two-way access to computer-aided style software applicatior Figure 1 below depicts the FEM procedure and steps used to solve engineering problems.
Figure 1 Finite Element Analysis Process flow. ean <> Sie as ee ie Sub-dividing a complicated structure into smaller sized elements is the critical suggestion in FEA It is one of the practical CAE computational tools as engineering structures can be design based upon the layout criteria within a short period [20]. Computer-aided design software is used to design structures tha’ cannot be done manually. It also provides two-way access to computer-aided style software applicatior Figure 1 below depicts the FEM procedure and steps used to solve engineering problems.
Figure 3 Joint connection
Figure 3 Joint connection
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. Figure 4 shows the Von-misses stress property of the material having maximum and minimum values of 3486.1MPa and 387.34Mpa, respectively. A value of 1889.1 MPa pressure value was obtained as seen in Figure 5 Figure 4 Von-mises Equivalent stress
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. Figure 4 shows the Von-misses stress property of the material having maximum and minimum values of 3486.1MPa and 387.34Mpa, respectively. A value of 1889.1 MPa pressure value was obtained as seen in Figure 5 Figure 4 Von-mises Equivalent stress
The Joint Probe in the X, Y and Z plane, as shown in figure 6, displays the resultant reaction force for the variation to time. The force at Z-axis has a maximum experienced at 5.2 seconds. The resultant force in the Y-axis remains constant after 1 second throughout the period. While the x-axis takes its peak at approximately 2.5 seconds with a force value of 1.0246E+5N. Hence, the total resultant force is towards the x-axis with a slightly higher magnitude than that of the Y-axis.
The Joint Probe in the X, Y and Z plane, as shown in figure 6, displays the resultant reaction force for the variation to time. The force at Z-axis has a maximum experienced at 5.2 seconds. The resultant force in the Y-axis remains constant after 1 second throughout the period. While the x-axis takes its peak at approximately 2.5 seconds with a force value of 1.0246E+5N. Hence, the total resultant force is towards the x-axis with a slightly higher magnitude than that of the Y-axis.
Result of the transient temperature in the cylinder body and piston is displayed in Figure 7. the piston head as clearly depicted graphically in figure 8 has higher temperature value when compared to the cylinder
Result of the transient temperature in the cylinder body and piston is displayed in Figure 7. the piston head as clearly depicted graphically in figure 8 has higher temperature value when compared to the cylinder
Figure 7 cylinder temperature
Figure 7 cylinder temperature
Figure 8 Piston head temperature
Figure 8 Piston head temperature
Further repeated refinement of the FEA structure into much smaller elements results in the convergence of the solution to an exact solution of the mathematical problem [23]. In this analysis, the convergence criteria are based on force. Convergence was obtained for the static analysis solution after a maximum number of 10 seconds as shown in figure 10
Further repeated refinement of the FEA structure into much smaller elements results in the convergence of the solution to an exact solution of the mathematical problem [23]. In this analysis, the convergence criteria are based on force. Convergence was obtained for the static analysis solution after a maximum number of 10 seconds as shown in figure 10
CONCLUSIONS CONCLUSIONS In this paper, transient analysis ofa piston-cylinder assembly using Finite Element Method (FEM) in ANSYS workbench is carried out in order to observe its stress and temperature response under the design loading conditions. The piston assembly structure was designed using SolidWorks software, saved as an IGES file and then imported into the ANSYS software. From the transient analysis result of the piston, 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. The red colour indicates this at the base-tip of the head while the stress distribution level across the connecting rod two ends joint appeared to have no overstressed visible region. This paper provides an introduction to FEM for engineering systems with similar models and gives away for future research for structural optimisation of the structural design. In order to accurately determine the thermal conditions of an IC engine, many details are required. Amore comprehensive investigation would certainly be extremely beneficial. As a future recommendation, combining simulations and experimental could be used to get a more accurate understanding of the thermal operating conditions of the piston.
CONCLUSIONS CONCLUSIONS In this paper, transient analysis ofa piston-cylinder assembly using Finite Element Method (FEM) in ANSYS workbench is carried out in order to observe its stress and temperature response under the design loading conditions. The piston assembly structure was designed using SolidWorks software, saved as an IGES file and then imported into the ANSYS software. From the transient analysis result of the piston, 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. The red colour indicates this at the base-tip of the head while the stress distribution level across the connecting rod two ends joint appeared to have no overstressed visible region. This paper provides an introduction to FEM for engineering systems with similar models and gives away for future research for structural optimisation of the structural design. In order to accurately determine the thermal conditions of an IC engine, many details are required. Amore comprehensive investigation would certainly be extremely beneficial. As a future recommendation, combining simulations and experimental could be used to get a more accurate understanding of the thermal operating conditions of the piston.
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Mechanical EngineeringMaterials ScienceMechanicsHead cylinder
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