You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
11 April 2006Experimental study of a PEM-based second order structural system identification technique
In this paper, the performance of a prediction error method (PEM)-based second order structural identification method is studied through a series of vibration test. The concerned structural identification method employs a prediction error method to identify the parameters of ARMAX/ARMA models that are formulated in a stochastic state space framework. This system identification method can be used to identify second order structural parameters such as mass, stiffness, damping ratios directly from measured vibration data. To evaluate the effectiveness of this PEM-based structural identification method, vibration data collected from a 3-storey model structure is used. Two series of vibration tests were carried out: in the first test series, dynamic load applied at the roof of the building is measured; the second test series involves base excitation of the model building. The results of this experimental study indicate that the PEM-based structural system identification technique is able to identify the second order structural parameters and locate the damages reasonably well. Therefore, the PEM-based structural identification method has a potential to be used for damage detection in structural health monitoring applications.
Jian Li andYunfeng Zhang
"Experimental study of a PEM-based second order structural system identification technique", Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61743F (11 April 2006); https://doi.org/10.1117/12.658800
The alert did not successfully save. Please try again later.
Jian Li, Yunfeng Zhang, "Experimental study of a PEM-based second order structural system identification technique," Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61743F (11 April 2006); https://doi.org/10.1117/12.658800