Vibration Analysis of the Chassis of the Formula One Car

Kaandeepan, Rajandran (2013) Vibration Analysis of the Chassis of the Formula One Car. Final Year Project (Other), Tunku Abdul Rahman University College.

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Abstract

The project is carried out with the purpose of investigating the first 10 mode shapes of the five tubular space frame chassis using FEA software and to investigate the first ten natural frequencies of the chassis using FEA software. Modelling of the tubular space frame chassis and conducting finite element analysis were all done in solid works 2012. After the initial model was designed, it was first tested for in the solid works 2012 FEA package and was found out that the model had lots of problems. But through the initial design mistakes, other chassis models were designed through the process of learning the mistakes from the initial model. There are a total of five different designs, and each design has its own parametric analysis. The parametric analysis was around the parameter of its size. Which were, the first size is a rectangular tube tubular space frame chassis. This means that all the beams that joins the tubular space frame chassis is rectangular tube and has the size of 70 by 40 by 5 sizes. The second size this means that all the beams that joins the tubular space frame chassis is pipe and has a size of 33.4 by 4 sizes. The third size refers to a combination of pipe and rectangular tube. The rectangular tube with the size of 70 by 40 by 5 will be used as the base and the pipe with the size of 33.4 by 4 sizes will be used for the other parts of the tubular space frame. The optimum model was chosen by researching on the internet on the range of natural frequency of a chassis. From there, the optimum model was chosen by plotting the graph and analysing it. Then the optimum model was also again simulated in solid works 2012, for its mode analysis. Once the mode analysis was conducted, the model was analysed. In conclusion, the operating natural frequency of the chassis can actually be modified by adding stiffness or by increasing its mass. The mass is one of the reasons; the optimum model was able to be out of the range of its natural frequency because of the optimum's model being a full rectangular tube chassis which is slightly heavier than the other sizes that were used it designing the models.