Ground Vibration Testing
Ground Vibration Testing (GVT) is a costly requirement for new aircraft and
aerospace structures. Data taken can be used for modal analysis and finite
element (FE) model correlation, and for loads analysis to prevent structural failure and for flutter certification.
Please read the comprehensive article about ground-based, dynamic testing of
solar sails at NASA, "Laser Vibrometry Helps to Validate Space Structures".
At the Air Force Institute of Technology (AFIT), Polytec’s PSV-400-3D Scanning Vibrometer is used to measure vibration characteristics of Unmanned Aerial Vehicles (UAVs) and other intricate aerospace and vehicular structures. Its use has improved the results of flutter analysis for airplane FE and has significantly reduced test time and post-processing analysis.