Sandia National Laboratories Validation Workshop: Structural dynamics application

Role of calibration, validation, and relevance in multi-level uncertainty integration

“…A multi-level structural dynamics challenge problem provided by Sandia National Laboratories [36] is used to illustrate the methodology developed in Sections 2-5. As shown in Fig.…”

Robust model updating with insufficient data

“…The numerical example is the structural dynamics application of the Validation Challenge Workshop [25,7]. The target structure consists of an elastically founded beam with a substructure that is composed of three masses connected to the beam through a weakly non-linear connection (see Fig.…”

An integrated approach for structural damage identification using wavelet neuro-fuzzy model

“…For vibration response based structural damage identification methods, transmissibility measurements are always subject to environmental, operational and measurement variability, and the uncertainty will propagate through to any features derived from it, leading to misinterpretation and false alarms (Mao & Todd, 2012). Uncertainty caused by noise and variability has successfully been quantified with signal processing methods such as WT algorithm (Tay, 2004;Wu & Deng, 2008), ANFIS (Noori, Hoshyaripour, Ashrafi, & Araabi, 2010;Theodoridis, Boutalis, & Christodoulou, 2010) and interval modeling technique (Lew & Loh, 2012;Red-Horse & Paez, 2008). Furthermore, the incorporation of the three methods generates a better effect on identifying structural damage.…”

“…Fitting of structural vibration response can be realized by wavelet-based ANFIS method (Mitchell, Kim, & El-Korchi, 2012), which as a single output system (Chen, Zhang, & Ieee, 2005;Melin, Soto, Castillo, & Soria, 2012) yet cannot directly identify damage of multi-sensor structures. This issue can be supplemented by introducing interval modeling technique (Lew & Horta, 2007;Red-Horse & Paez, 2008) through information fusion (Rodger, 2012).…”