Study of the dynamic behaviour of a timber altarpiece using Laser Vibrometers

The preservation and maintenance of cultural heritage is of great importance for future generations. Non-destructive investigation methods play a crucial role in assessing the state of conservation of historical artifacts. In this work, a study on the dynamic behaviour of the replica of a timber altarpiece using a laser vibrometer is presented. The objective of this study is to analyse the dynamic response of an altarpiece when stimulated with volumes comparable to that of the human voice. Experimental tests were conducted on the replica and the results were analysed and discussed. The proposed method has shown to be effective in characterizing the dynamic behaviour of the artwork, providing valuable insights into its structural response and condition. This study demonstrates the potential of laser vibrometers as a non-destructive investigation method for the diagnostics and conservation of cultural heritage.