THE IMPACT DYNAMIC MODEL OF STEEL CABLES

A dynamic model of steel cable is established by a discrete elements method considering relative coordinate relationship. Its connective structures are modeled as lumped mass and incorporated into the steel cable dynamic model as end constraints. Introducing the steel cables contact-impact force into the established dynamic model of steel cable with their connective structure, the impact dynamic model of steel cables with their connective structure is established finally. An example is presented, which is steel cables consisting of a transversely placed and a vertically placed steel cable with their connective structures. The impact dynamic simulation model is established in RecurDyn. The results show that the proposed impact dynamic model can be applied in the dynamic analysis of structural systems consisting flexible bodies and rigid bodies.