Simplified Theory for Nonhertzian Contact

摘要

A theory for contact formation and for frictional rolling, in which the contact area is not known in advance, and may be nonhertzian is proposed. The program first determines the contact area on the basis of the given total normal force, and then applies the FASTSIM algorithm in the contact area on the basis of the given creepages and the spin, to find the total tangential force. In the Hertzian case the program was compared with the 1982 FASTSIM program and it is found that the algorithms are equally accurate, but that the new program is three times slower than the old one.