A Modal Analysis Study Using Different Materials in the Formula Student Car Chassis


Karaçor B., Elçim M. M., Özcanlı M.

6th International Conference on Global Practice of Multidisciplinary Scientific Studies, Lisbon, Portugal, 9 - 16 April 2024, pp.1982-2005

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.5281/zenodo.11211705
  • City: Lisbon
  • Country: Portugal
  • Page Numbers: pp.1982-2005
  • Çukurova University Affiliated: Yes

Abstract

In the chassis, the chassis maximum shear stress and deflection under maximum load are important criteria for design and analysis. When it comes to Formula student cars, it is necessary to achieve a design that is both stronger and lighter than other chassis. This study describes the design and analysis of the formula student vehicle chassis. High-strength AISI 4130 and S355 steels as well as ultra-high-strength Usibor 1500 steel were used in the vehicle chassis and the finite element analysis (FEA) method was used for structural analysis and modal analysis for the Formula student car chassis. Formula student car chassis design was designed with the CATIA V5R21 program. Preloaded vibration analysis was performed on three different highstrength steels and analyzed in ten different modes. The frequency values of AISI 4130 and S355 steels were compared and an average increase of 0.53% was observed in the results of S355 steel. The frequency values of ultra-high strength Usibor 1500 steel were observed to decrease by an average of 1.99% in the frequency values of S355 steel. The equivalent stress value of AISI 4130 steel was 400 MPa, S355 steel was 395 MPa and ultra-high strength steel was 396 MPa. Ultra-high strength steel has 2.33 times higher safety factor than AISI 4130 material and 3 times higher safety factor than S355 material. From the vibration analysis results, the highest value in the tenth mode was obtained from S355 steel with 256.46 Hz. The lowest deformation in the tenth mode was obtained from ultra-high strength Usibor 1500 steel with 20.263 mm