Fatigue Life Prediction Of Minibus Lower Suspension Arm Using Strain-Life Approach
DOI:
https://doi.org/10.56347/jes.v4i2.276Keywords:
Lower Suspension Arm, Fatigue Life, Strain-Life, Finite Element Method, Suspension SystemAbstract
The lower suspension arm is a critical component in vehicle suspension systems that experiences complex dynamic loads during operation. This study aims to predict the fatigue life of minibus lower suspension arms using a strain-life approach considering road conditions in Southeast Asia. The finite element method was employed to analyze stress and strain distributions on the component, while fatigue failure criteria were applied to predict component life. Simulations were conducted using ANSYS software with Al-Si aluminum alloy material commonly used in suspension components. Analysis results showed that maximum stress occurred at the bushing joint area with a value of 245 MPa, and fatigue life was predicted to reach 1.2 × 10⁶ cycles for rough road conditions. Sensitivity analysis indicated that road roughness and joint geometry have significant influences on component fatigue life. This research contributes to design optimization and material selection to enhance lower suspension arm durability under tropical operating conditions.
References
Ardjuna, B., Setiyana, B., & Haryanto, I. (2024). Optimasi desain swingarm tipe monoshock dua lengan dengan software SolidWorks. Jurnal Teknik Mesin, 12(2), 1–10.
Bruder, T., Hanselka, H., Heim, R., Kaufmann, H., Kieninger, M., Nuffer, J., & Sonsino, C. M. (2014). Fatigue and structural durability of automotive components. In Road and off-road vehicle system dynamics handbook (p. 1708).
Cameron, D. W., & Hoeppner, D. W. (1996). Fatigue properties in engineering. In Fatigue and fracture (pp. 15–26). ASM International.
Dash, S. S., & Chen, D. (2023). A review on processing–microstructure–property relationships of Al–Si alloys: Recent advances in deformation behavior. Metals, 13(3), 609. https://doi.org/10.3390/met13030609
Heim, R. (2020). Operating life analysis. In Structural durability: Methods and concepts: Enabling cost and mass efficient products (pp. 13–66). Springer International Publishing. https://doi.org/10.1007/978-3-030-45108-7_2
Kahoul, H., Belhour, S., Bellaouar, A., & Dron, J. P. (2019). Fatigue life prediction of upper arm suspension using strain-life approach. Journal of Engineering, Design and Technology, 17(1), 25–40. https://doi.org/10.1108/JEDT-03-2018-0054
Kashyzadeh, K. R. (2016). Mass reduction for arm suspension of vehicle by using optimal design parameters. International Journal of Vehicle Systems Modelling and Testing, 11(4), 271–284. https://doi.org/10.1504/IJVSMT.2016.079845
Kashyzadeh, K. R., Ostad-Ahmad-Ghorabi, M. J., & Arghavan, A. (2015). Fatigue life prediction of package of suspension automotive under random vibration based on road roughness. Mediterranean Journal of Modeling and Simulation, 4(1), 37–50.
Kim, Y. S., & Kim, J. G. (2017). Evaluation of corrosion fatigue and life prediction of lower arm for automotive suspension component. Metals and Materials International, 23(1), 98–105. https://doi.org/10.1007/s12540-016-6050-2
Liu, Y., Gao, X., Huang, H., & Tan, J. (2025). Finite element analysis and optimization of steering axle structure for new energy vehicles. Symmetry, 17(11), 1882. https://doi.org/10.3390/sym17111882
Murtadlo, H. A. (2016). Analisis kekuatan carbon fiber tube A-arm Sapuangin Speed dengan metode elemen hingga (Doctoral dissertation, Institut Teknologi Sepuluh Nopember).
Oehlers, D. J., Ghosh, A., & Wahab, M. (1995). Residual strength approach to fatigue design and analysis. Journal of Structural Engineering, 121(9), 1271–1279. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:9(1271)
Ogunoiki, A. O. (2015). Artificial road input data generation tool for vehicle durability assessment using artificial intelligence (Doctoral dissertation, University of Birmingham).
Pachapuri, M. S. A., Lingannavar, R. G., Kelageri, N. K., & Phadate, K. K. (2021). Design and analysis of lower control arm of suspension system. Materials Today: Proceedings, 47, 2949–2956. https://doi.org/10.1016/j.matpr.2021.05.151
Pramono, A. S., & Wikarta, A. (2006). Simulasi pengujian lower front arm dengan metode elemen hingga.
Putra, T. E., & Ikbal, M. (2020). Effect of road surface contour to the fatigue life of a coil spring based on strain-life approach. In IOP Conference Series: Materials Science and Engineering (Vol. 739, No. 1, Article 012014). IOP Publishing. https://doi.org/10.1088/1757-899X/739/1/012014
Rahman, M. M., Noor, M. M., Kadirgama, K., Maleque, M. A., & Bakar, R. A. (2011). Modeling, analysis and fatigue life prediction of lower suspension arm. Advanced Materials Research, 264, 1557–1562. https://doi.org/10.4028/www.scientific.net/AMR.264.1557
Saoudi, A., Bouazara, M., & Marceau, D. (2011). Fatigue failure study of the lower suspension vehicle arm using a multiaxial criterion of the strain energy density. Strojniški vestnik – Journal of Mechanical Engineering, 57(4), 345–356. https://doi.org/10.5545/sv-jme.2010.186
Sener, A. S. (2016). Steering wheel tie rod fatigue life determination according to Turkish mission profiles. International Journal of Engineering Technologies (IJET), 2(2), 56–63.
Wahyudin, Husaini, & Putra, T. E. (2021). Stress analysis on an automotive lower arm steered on the straight and turning roads. In Proceedings of the 2nd International Conference on Experimental and Computational Mechanics in Engineering (ICECME 2020) (pp. 271–276). Springer Singapore. https://doi.org/10.1007/978-981-16-0731-4_25
Wijayanto, M. R., & Guntur, H. L. (2024). Desain dan analisis kekuatan struktur suspensi all wheel drive vehicle. Jurnal Teknik ITS, 13(2), E136–E141. https://doi.org/10.12962/j23373539.v13i2.12345
Zoroufi, M. (2004). Manufacturing process effects on fatigue design and optimization of automotive components: An analytical and experimental study (Doctoral dissertation, The University of Toledo).
Zoroufi, M., & Fatemi, A. (2004). Fatigue life comparisons of competing manufacturing processes: A study of steering knuckle (SAE Technical Paper No. 2004-01-0628). SAE International. https://doi.org/10.4271/2004-01-0628
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