Dynamic substructuring is an efficient approach for analyzing the dynamic behavior of mechanical systems, especially when the complete assembly is not yet physically manufactured or available. Based on the response models of individual components, it is possible to estimate the dynamic characteristics of the entire system already in the early stages of development, which significantly contributes to faster and more targeted design. This master’s thesis addresses frequency-domain substructure coupling using the Virtual Point Transformation (VPT) method, which enables the coupling of experimentally identified response models. The focus is on establishing compatibility and equilibrium conditions at the virtual interface point. Using a practical case study involving two flanges, the complete procedure is demonstrated: from the measurement of component response models and modeling of the interface via virtual points, to the final coupling. The results are validated by measuring the response of the assembled structure, allowing for an assessment of the method’s accuracy and its applicability in engineering practice.
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