Ground vibration testing is a critical step in aircraft development process, providing experimental modal data for aeroelastic analysis and model updating. Modern research has focused on optimizing experimental methods to improve testing efficiency without compromising accuracy. In this study, an alternative open-source approach to aircraft vibration testing was proposed. The method is based on measurements obtained using a high-speed camera, which provides a high spatial density evaluation of the observed structure. The proposed method was successfully validated against a conventional technique, demonstrating high fidelity for frequency ranges below 200 Hz, with eigenvalue correlation exceeding 98 % and modal shape similarity surpassing 92 %. Furthermore, the impact of high spatial density data on the iterative model updating process was analyzed. The results indicate that evaluating a greater number of measurement points significantly improves the accuracy of the model updating process.
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