The Type 7A chassis is one of several chassis designs used to determine the effect on
chassis torsional stiffness of various design features.

The chassis is constructed from square tubing. All chassis members are
constructed using 25 mm square steel tube with a 1.6 mm wall thickness.

Clubman Chassis Models

The image above shows the 3D wireframe structure used to perform a simple stress analysis for this chassis design.

Clubman Chassis Models

The image above shows the predicted stress levels (axial stress along each tube) in the chassis structure
due to an applied torsional load. The red colour indicates the most highly stressed chassis members.
Yellow indicates moderate stress levels while blue indicates low stress.

This chassis was tested for theoretical torsional stiffness. A value of 1787 lbs.ft/degree was calculated. 

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