Minimal needed resistive forces data for different types of wheels with uniform rectilinear motion on various floors.

Résumé 0

These data are the minimal resistive forces for different types of wheel in uniform rectilinear motion on a various flloors. 44 different wheels were tested, varying diameter (80mm, 100mm, 160mm and 200mm), tread (solid rubber, elastic-tyre, thermoplastic rubber, synthetic rubber, injected polyurethane, casted polyurethane and polyamide) and bearing (sleeve bearing, cone ball bearing and precision ball bearing). 5 differents floors were tested: a flat, smooth and horizontal steel plate and 4 resilient floor coverings (3 PVC multilayer floor coverings and 1 monolayer rubber floor covering). These results were obtained at steady state (where acceleration is zero for a constant velocity was 2,5km/h) using an original motorised test bench. Forces were measured with a six-axis force sensor. The tests were carried out, for each wheel and flooring for 5different loads: (13kg, 24kg, 37kg, 49kg and 62 kg). Average forces were then calculated from 3 round-trips. Combining these results with a mechanical model of a cart, permits to modelize the minimal pushing force to move it. An example of a trial with the test bench is shown by a short movie