View source for Creation of accurate contact modelling technique for linear FEM-analysis

[[File:FEM contact snapshot.png|frameless|right|FEM - structure defomation]]

'''Background'''
*FEM-analysis is used to determine natural frequencies of a frequency converters and evaluate their behaviour and  mechanical strength in vibration tests.
*One of the main challenges currently is how to model contacts between components for linear FEM-analysis (modal analysis and vibration response analysis) accurately enough.


'''Target'''
*To have contacts modelling technique for linear FEM-analysis, which could be applied for modelling accurately FEM models of large assemblies. It must be possible to utilize developed techique(s) in main commercial FEM softwares ( Abaqus, Ansys etc.)
*Real-life reference testing of analyzed objects is needed to verify the accuracy of developed modelling method.

[[File:Creation of accurate contact modelling technique for linear FEM-analysis.pdf|thumb]]

[[File:FEM contact resonance.png|frameless|left|Resonance in the structure]]