Camshaft Failure Simulation with Static Structural Approach

Riduwan Prasetya, Andoko Andoko, Suprayitno Suprayitno

Abstract


A failure happens within the camshaft of the minibus when the vehicle is in utilize. The camshaft was a fracture within the bearing between the primary cylinder exhaust valve and the second cylinder suction. This simulation aims to find the causes of camshaft failure utilizing the finite element method with a static structural approach, including simulations of deformation, strain, stress, fatigue life (stress-life and strain-life), and cracks. The method used in this paper is the finite element method with a static structural approach by ANSYS software. The camshaft material is a gray cast iron designed using Solidworks. Pre-processing includes meshing with a size of 3 mm. The value of loading force (1348.28 N) and torque (113400 Nmm) are fixed, and the boundary conditions are varied. Processing includes the process of computation and post-processing into a part that displays the results. The simulation results show that for all the deformation and strain values that are in the elasticity area of the material, the maximum and minimum stress which is below the strength of the material, the location of the maximum values of deformation, strain, and stress is not at the fault location. The simulation of fatigue life both in stress-life and strain-life results in infinite cycles, which is above 106 cycles, while the simulation of cracks results in a decrease in the cycle. Based on the simulation results with the above parameters to the camshaft, it was found that a failure was caused by a defect characterized by reduced fatigue life at the same loading conditions.

Keywords


ANSYS, camshaft, failure analysis, simulation, static structural

Full Text:

PDF

References


Lubis, D.Z., and Andoko, “Elastic Linear Analysis of Connecting Rods for Single Cylinder Four Stroke Petrol Engines Using Finite Element Method,” J. Mech. Eng. Sci. Technol., vol. 3(1), pp. 42–50, 2019.

Lin, D.-Y., Hou, B.-J., and Lan, C.-C., “A Balancing Cam Mechanism for Minimizing the Torque Fluctuation of Engine Camshafts,” Mech. Mach. Theory, vol. 108, pp. 160–175, 2017.

Andoko and Amin, W. R., “Investigation of Stress, Deformation, and Cracks in the Brakes of Car Using Finite Element Method,” IOP Conf. Ser. Mater. Sci. Eng., vol. 515(1), 2019.

Altinisik, A., and Hugul, O., “The Seven-Step Failure Diagnosis in Automotive Industry,” Eng. Fail. Anal., vol. 116, p. 104702, 2020.

Jamili and Andoko, “Stress and Deformation Simulation in 6 Hole Steel Rim Using Finite Element Method,” IOP Conf. Ser. Mater. Sci. Eng., vol. 494(1), 2019.

Andoko et al., “Simulation of CNC Milling 5 Axis with Finite Element Method,” in AIP Conference Proceedings, p. 040013, 2020.

Andoko, Paryono, Prasetya, R., Jeadi, R. P., Kurniawan, P., and Pradica, D. R., “Simulation of the Effect of Energy Absorption on Crashbox With Full Crash Initiator and Without Crash Initiator,” in AIP Conference Proceedings, vol. 2262, 2020.

Patil, S. and Karuppanan, S., “Modal and Fatigue Analysis of a Camshaft Using FEA,” Int. J. Appl. Eng. Res., vol. 8(14), pp. 1685–1694, 2013.

Wang, G., Taylor, D., Bouquin, B., Devlukia, J., and Ciepalowicz, A., “Prediction of Fatigue Failure in A Camshaft Using the Crack Modelling Method,” Eng. Fail. Anal., vol. 7(3), pp. 189–197, 2000.

Suhas, K.S., and Haneef, D.M., “Contact Fatigue Analysis using Finite Element Analysis for 6 Station 2 Lobe Cam Shaft,” Indian J. Appl. Res., vol. 4(7), pp. 185–187, 2011.

ASTM, “Standard Specification for Automotive Gray Iron Castings,” vol. 03, no. Reapproved, pp. 1–5, 2000.

Wang, H., Fu, C., Cui, W., Zhao, W., and Qie, S., “Numerical Simulation and Experimental Study on Stress Deformation of Braided Wire Rope,” J. Strain Anal. Eng. Des., vol. 52(2), pp. 69–76, Oct. 2016.

Chen, T.-C., Chen, S.-T., Tsay, L.-W., and Shiue, R.-K., “Correlation Between Fatigue Crack Growth Behavior and Fracture Surface Roughness on Cold-Rolled Austenitic Stainless Steels in Gaseous Hydrogen,” Metals (Basel)., vol. 8(4), p. 221, 2018.

Norton, R. L., Machine Design: An Integrated Approach (4th Edition). 2011.

Vukelic, G., and Brcic, M., “Failure Analysis of a Motor Vehicle Coil Spring,” Procedia Struct. Integr., vol. 2, pp. 2944–2950, 2016.

Doshi, K., Roy, T., and Parihar, Y. S., “Reliability Based Inspection Planning Using Fracture Mechanics Based Fatigue Evaluations for Ship Structural Details,” Mar. Struct., vol. 54, pp. 1–22, 2017.

Xin, Q., “2 - Durability and Reliability in Diesel Engine System Design,” Woodhead Publishing, pp. 113–202, 2013.




DOI: http://dx.doi.org/10.17977/um016v5i12021p047

Refbacks

  • There are currently no refbacks.


Copyright (c) 2021 Journal of Mechanical Engineering Science and Technology (JMEST)

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

View My Stats