Abstract
Keywords: contact spot, tyre, solid force transducer, force-pressure, axle load, road.
This paper deals with the research regarding the stresses inside the contact spot of the autovehicle - truck tyre with the road in the characteristic modes (free run) acceleration, haulage and braking. It also deals with construction of a force transducer purposely designed for measurements in three directions X, Y and Z that define space. This transducer allows for displaying the curves of the forces acting upon each transducer mounted along the road, in real time. With the help of the transducer it is possible to punctually measure the forces inside the contact spot of the tyre with the rolling track on the contact spot whole width.