张紧索道, 非线性索单元, 多体动力学模型, 位移相容性

Based on the non-linear constitutive equation of the pre-loaded cable elements, this paper presented an equivalent multi-body dynamics model. In the method, the whole cable was divided into short rigid bodies, and the equivalent reaction force between the elements was deduced and applied to the rigid bodies by means of General Force in ADAMS. The torsion stiffness and damping were introduced to ensure the displacement consistent. The presented method was implemented onto ADAMS, and a pre-loaded cable model was built, the vibration amplitude and frequency under different pre-load force were analyzed, the results show that the relationship between vibration amplitude and pre-load force is agree with the analytic results. The present method provides a theoretical basis for modeling of a preload cable system using ADAMS.

preload cable, nonlinear cable element, multi-body dynamics model, displacement consistent