Abstract
There are several kinds of mechanical systems that are under event-triggered conditions. For the dynamic analysis of such mechanical systems, a dynamics kernel that can generate equations of motion for mutibody systems in the simulation program was developed. For complex multibody systems, a multibody dynamics kernel was developed to generate the equations of motion for multibody systems. To generate the equations of motion, the recursive formulation method was used. Using the developed dynamics kernel, the dynamic responses of multibody systems can be carried out. For the dynamic response analysis, an external force calculation module was developed. The developed module calculates the hydrostatic force considering the nonlinear effects and the linearized hydrodynamic force by using the 3D Rankine panel method for the forces exerted on the floating crane. The kernel can also be used for the dynamic response analysis of a general multibody system operating in ocean waves. With the use of the dynamics kernel developed in this paper, a dynamic response simulation of lunching process of the ship using two floating crane was carried out.