This paper presents the experimental results of the dynamic behaviour of a circular arch in undamaged and several damaged configurations, and compares them with those obtained by means of analytical methods. The damage is introduced in the undamaged arch by operating a notch and is then modelled as a torsion spring of suitable stiffness localised in the damaged cross-section. Good agreement between analytical and experimental results is observed. An identification procedure based on frequency measurements is proposed and validated. (C) 2008 Elsevier Ltd. All rights reserved.
Vibration and damage detection in undamaged and cracked circular arches: Experimental and analytical results / M. N., Cerri; M., Dilena; Ruta, Giuseppe. - In: JOURNAL OF SOUND AND VIBRATION. - ISSN 0022-460X. - STAMPA. - 314:1-2(2008), pp. 83-94. [10.1016/j.jsv.2008.01.029]
Vibration and damage detection in undamaged and cracked circular arches: Experimental and analytical results
RUTA, Giuseppe
2008
Abstract
This paper presents the experimental results of the dynamic behaviour of a circular arch in undamaged and several damaged configurations, and compares them with those obtained by means of analytical methods. The damage is introduced in the undamaged arch by operating a notch and is then modelled as a torsion spring of suitable stiffness localised in the damaged cross-section. Good agreement between analytical and experimental results is observed. An identification procedure based on frequency measurements is proposed and validated. (C) 2008 Elsevier Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
