Intelligent modeling of contact stiffness of machine joint interfaces

In this paper, firstly the influencing factors of contact stiffness of machine joint interfaces and their description method are introduced and discussed. Then a weight smoothing BP algorithm is introduced briefly. It has better generalization performance. Basing on this algorithm, the intelligent modeling method of contact stiffness of machine joint interfaces under multijoint conditions is proposed for the first time. This method is proved feasible by the given modeling example.