The aim of the research is to identify the movements of a race motorcycle rider while running on a race track. It is well known how the inertial characteristics of human body are comparable to the motorcycle ones. It is necessary to understand the body-vehicle interactions to describe the dynamical behaviour of the complete system. A numerical model of pilot-vehicle system, in a multi body logic, is being developed, using the results of this research. The tested motorcycle is equipped by a fixed original measurements system, characterised by five cable-extension position transducer (voltage divider type). The pilot’s back is equipped by a rigid ergal staff, constrained by a multi cross belts system, on which two target points are placed, with pre defined distance. These targets are pointed by the five sensors. Through the use of a non linear numerical model it is possible to identify the translational and the cardanic rotational 3D movements of the rider body. To proceed with the procedure validation and calibration, an anthropomorphic arm robot was used. The targets staff was constrained on the end effector, the sensors system was ground fixed and incremental displacements and rotations were programmed. Some results finally obtained in a first experimental session are reported.

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