Multi body and fatigue life cycle analysis of the lower control arm of suspension system of an all-terrain vehicle

N. Naik, C. S. Suhas Kowshik, George Varghese, Pavan Hiremath, Ritesh Bhat

Research output: Contribution to journalArticle


The rapid growth in the automobile industry and the need to develop and roll out the new products, demands for new technologies to reduce the product development cycle. The numerical computation of component stresses is considered to be state of-the-art industrial engineering practice and durability is a major bottleneck in today’s automobile body design. The current investigation focuses on virtual durability test and evaluate fatigue life cycle of the double wishbone suspension system of an All- Terrain vehicle. The simulations carried out for the control arm, validates the process of pitch, roll and twist events and the results prove that the twist event to be more detrimental and causes an early fatigue failure of the control arm. The methodology of virtual durability estimation for All-Terrain vehicle has been established using integrated multibody and finite element software tools. The process of estimation can be adapted and made applicable in durability evaluation of vehicles which are at early stages of development process. Durability loads can be extracted for each specified vehicle event. The durability of the lower control arm of All- Terrain vehicle has been estimated. Among the three simulated events fatigue life at twist event has been found to be least and is 292 cycles of repetitions. The fatigue life at roll event has been found to be maximum of 1523 cycles of repetitions. Hence, among the three simulated events twist event has been found to be more detrimental and causes an early fatigue failure of the control arm in comparison with the other events

Original languageEnglish
Pages (from-to)1610-1620
Number of pages11
JournalInternational Journal of Mechanical Engineering and Technology
Issue number13
Publication statusPublished - 01-12-2018


All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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