New analytical method based on dynamic response of planar mechanical elastic systems

• Main Authors: Maria Luminiţa Scutaru, Sorin Vlase, Marin Marin, Arina Modrea
• Format: Article
• Language: English
• Published: SpringerOpen 2020-06-01
• Series: Boundary Value Problems
• Subjects: Maggi; Lagrange; Finite element analysis (FEA); Multibody system (MBS); Elastic elements; Mechanism
• Online Access: http://link.springer.com/article/10.1186/s13661-020-01401-9

Abstract An important stage in an analysis of a multibody system (MBS) with elastic elements by the finite element method is the assembly of the equations of motion for the whole system. This assembly, which seems like an empirical process as it is applied and described, is in fact the result of applying variational formulations to the whole considered system, putting together all the finite elements used in modeling and introducing constraints between the elements, which are, in general, nonholonomic. In the paper, we apply the method of Maggi’s equations to realize the assembly of the equations of motion for a planar mechanical systems using finite two-dimensional elements. This presents some advantages in the case of mechanical systems with nonholonomic liaisons.