Simplification methods for reducing computational effort in mechanical analysis

Abstract

Many finite element models have large amount of degrees of freedom, analysing such models can take tens of hours. The main goal of the bachelor thesis was to present model simplification methods which can help to reduce solution time. The thesis consists of two parts. The first part of this work describes four simplification methods and their use in practice. In the second part, the applicability of each method is demonstrated on several examples. The functionality of simplification methods is verified comparing the full model analysis and the simplified model analysis. The thesis focuses mainly on static and modal analysis. The analyses are performed using software ANSYS Workbench 18.0 and MATLAB.