Sparse Matrix Method for Component-oriented Dynamic Simulation of Multibodies in Vsd Software

This paper presents a new algorithm for the component-oriented simulation of motion of multi-rigid-body systems, based on the decomposition of sparse matrices. The implementation of the method was sufficiently performed in Virtual System Designer (VSD) software, which is able to calculate the dynamics of CAD models because of its integration with a CAD tool Autodesk Inventor. The presented algorithm is well-suited for the use of a preprocessing module, performing the symbolic simplification of decompositions of sparse matrices, which significantly reduces the numerical costs of the simulation. Example of a CAD model of a double insulator chain illustrates the effectiveness of the method.