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Optimization and re-design of a wheel hub to reduce unsprung mass of a rallycross car
University of Skövde, School of Engineering Science.
2018 (English)Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The Wheel Hub of a rallycross car is analysed to reduce the unsprung mass of the car. The problem statement is to mainly focus on the unsprung mass related to the suspension, and more specifically on the Wheel Hub. One of the objectives of the suspension system of a car is to damping the movement of the car. This is an important area when designing a vehicle, and especially a race car due to the extreme conditions that may result in reduced traction and loose of confidence for the driver. A theoretical model is performed to demonstrate the importance of a low unsprung mass and to illustrate how it affects the vehicle-handling. A process to evaluate the current Wheel Hub and decision to re-design the Wheel Hub is performed, and the parts are analysed using the Finite Element Method to verify the design and material selection. Vehicle dynamics of the car is analysed to calculate the acting forces. Optimization of the design is performed by using Computer Aided Engineering. The re-designed Wheel Hub presented as the result of this project with a Brake Disk Adapter integrated in Hub. This design reduces the number of parts, and the unsprung mass up to 25% without any effects on suspension geometry or other parts of the car.

Place, publisher, year, edition, pages
2018. , p. 50
Keywords [en]
Wheel jub, vehicle dynamics, optimization, Finite element analysis
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:his:diva-15721OAI: oai:DiVA.org:his-15721DiVA, id: diva2:1221239
External cooperation
EKS
Subject / course
Mechanical Engineering
Educational program
Mechanical Engineer
Supervisors
Examiners
Available from: 2018-07-13 Created: 2018-06-19 Last updated: 2018-07-13Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf