NUMBER OF PIEZOELECTRIC GENERATOR ACTIVATED SIMULTANEOUSLY:
Internal perimeter = 2 x p x 300 mm = 1.884,96 mm
Generator width = piezoelectric + capsulate = 1,5 mm + 1,5 mm = 3 mm
Number of piezoelectric generators = 1.884,96 mm / 3 mm = 628 piezoelectric generators
Number of piezoelectric generators = 628 x 0,75 = 471 piezoelectric generators for each roller.
Lost space = 25 %
Considering a contact between wheel and roller is 12 mm, this would mean that we activate a total of 4 generators of 3 mm, and 2 rollers in each wheels, that is, a total of 8 generators activated simultaneously in each wheel with 500 Kg in 1G conditions. (Vehicle weight / 4)
Then 8 generators activated simultaneously x 333 piezoelectric x 1 N of activation force for each piezoelectric = 2.664 N = 271,6 Kg of the 500 Kg existing in each wheel with a vehicle of 2.000 Kg.