Motorcycle chassis design: frame development for the PreMoto3 motorcycle

Proceedings of ‏The 10th International Conference on Research in Science and Technology

Year: 2020


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Motorcycle chassis design: frame development for the PreMoto3 motorcycle

Anders Mateusz, Dagiel Arkadiusz, and Skawinski Piotr



The proper chassis design is crucial for success in motorcycle racing series, especially in those that require identical engines. The presented information is based on the process of developing the chassis for the PreMoto3 motorcycle prepared for the MotoStudent and MotoEngineering Cup competitions. Leading solutions made of materials such as steel and aluminium alloys demand a different approach in both, the element design process and the manufacturing process. The chosen approach has an impact on rigidity. It also provides a different possibility to manipulate the chassis flexure. The differences in structure stiffness are shown using the Finite Element Method. Several possible chassis configurations have been compared, including the design with several areas reinforced using Carbon Fibre Reinforced Polymer (CFRP) and with the additional stiffening element mounted. Furthermore, beam and shell FEM models of triangulated frames were also compared. The process of making a truss steel frame in unit production and the manufacturing process of a twin spar frame (based on aluminium alloys) were described. Amendments between the manufacturing process of trellis and beam frame were made based on the experience gained during truss frame manufacturing.

Keywords: motorcycle, chassis, FEA, manufacturing.