IRJET - GVT, Updating and Correlation on Scale Aircraft Model

This document discusses the process and importance of conducting a Ground Vibration Test (GVT) on an aircraft model. A GVT determines the natural frequencies, mode shapes, and damping of an aircraft structure through experimental testing. The results are used to validate analytical models of the aircraft, which are important for predicting flutter and ensuring flight safety. The document outlines creating a CAD model of the aircraft, manufacturing scale parts, assembling them, performing the GVT with hammers and shakers, extracting modal parameters, and correlating experimental results with finite element analysis models. Good correlation between tests and models is needed to certify the aircraft for further testing like ground runs and in-flight flutter investigations.