Numerical Method for Determining Stiffness Characteristics of an Arbitrary Form Superelement

Abstract

As part of the superelement approximation technology for fragments (subsystems) of the analyzed structures, a numerical method of determining the characteristics of arbitrary type superelements was developed. The examples of simulation models with two-node superelements demonstrated the efficacy of the method in the structural analysis of elastic systems.

Keywords

• finite element method (fem)
• finite element (fe)
• superelement
• set of equations fem
• element stiffness matrix
• element compliance matrix
• two-node superelement
• beam fe