High rigidity and lightweight are important factors in every frame of vehicles.
In Formula SAE vehicle design, to achieve this purpose the target value of the torsional rigidity of the frame was determined in the test run, and the conditions of analysis were also developed to be able to measure the compartment of the frame which concerns the actual driving conditions of the vehicle. Additionally focusing on the dynamic conditions of the vehicle, special devices for the frame were employed.
Finally, the weight of 2008 year's model was saved by up to 29% from 2005 year's model, in spite of the torsional rigidity was downsized by only 12%.
