WHAT HAPPENS TO F1 TYRES UNDER LOAD

Here is an interesting article written by James Allen and aided by JA on F1 technical adviser Prof Mark Gillan. Prof Mark Gillan was formerly chief operations engineer at Williams, Toyota and Jaguar and he recently gave a lecture on this subject as principal R&D engineer of MTS Systems, which makes testing equipment. Picture an F1 car standing still in the pit lane. The sidewalls of the tyre are nice and straight and the contact patch of the tyre is touching the ground. But imagine what that tyre looks like when loaded up in a high speed corner – it flexes and the shape is no longer that ideal vertical line, so easy to model in a wind tunnel. In modern F1 there is a real premium on understanding this phenomenon and being able to work with the changing shape of the tyre so that the car’s aerodynamics are the best they can be at all times. In simple terms there is lap time to be gained from doing better in this area; so there’s a lot of work going on there at the mom...