Airplane Ground Vibration Testing – Nominal Modal Model Correlation
نویسنده
چکیده
SOUND AND VIBRATION/NOVEMBER 2002 A brief overview is given of transport airplane ground vibration testing (GVT) at Boeing Commercial Airplane Group. A GVT is a modal test conducted for the purpose of validating and improving a structural dynamic model of the airplane. A “small signal” model is quickly and conveniently identified from multi-input burst random excitation. Sine excitation is used selectively to adjust the model to account for moderate departure of the airplane from linearity.
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