A versatile offset operator for the discrete observation of objects

Rosa, Sergio De; Franco, Francesco; Casaburo, Alessandro; Marulo, Francesco

doi:10.1016/j.jsv.2021.116019

Cited by 3 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is due to the fact that the reconstruction is applied to points directly involved into the VOODOO matrix, therefore the transformation is built ad hoc for such a configuration. The same accuracy can be obtained when the behavior of the prototype is derived from that of the model De Rosa et al [5]. Instead, Fig.…”

Section: Test Case 1: Two Simply Supported Platessupporting

confidence: 59%

“…Such a drawback may be overcome by increasing the number of VOODOO points: on the one hand, this approach would lead to bigger matrices, thus to procedures more computationally expensive; on the other hand, a thorough distribution of several VOODOO points may help to bound amplitude shifts, like those shown in Fig. 4b, when predicting the responses De Rosa et al [5]. In fact, any excitation point would be closer to a VOODOO point with respect to the case with fewer points.…”

Section: Test Case 1: Two Simply Supported Platesmentioning

confidence: 99%

“…Nonetheless, the problem of partial similitudes (models which do not satisfy at least one similitude condition) must not be underestimated, since distortions are a true issue due to manufacturing errors and limits. Therefore, there is a need to research and formulate alternative methods to overcome these drawbacks, which has led to the definition of VOODOO (Versatile Offset Operator for the Discrete Observation of Objects) method, already proposed in a work by De Rosa et al [5]. The purpose of this work is to investigate the performances of VOODOO in off-design conditions, with specific attention to single plates and assemblies of two plates.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Linear Transformation for the Reconstruction of the Responses of Systems in Similitude

Tavasso

Casaburo²,

Petrone

et al. 2022

Aerotec. Missili Spaz.

Self Cite

View full text Add to dashboard Cite

Recent years have seen an increasing interest towards similitude methods. In fact, the possibility of testing a scaled model, instead of a full-scale prototype, leads to many advantages: financial and time savings, easier experimental setups, etc. However, similitudes have drawbacks, too, mainly due to non-scalable effects and partial similitude, which prevent from an accurate reconstruction of the prototype response. For these reasons, an alternative method which can bypass these limitations is needed. A new method, called VOODOO (Versatile Offset Operator for the Discrete Observation of Objects), is herein proposed: it is based on the definition of a transformation matrix which links the outputs of a given linear systems to those belonging to another system, which may be a scaled model. The responses are acquired on a discrete number of points for both the systems. This work aims at investigating the method’s strengths and limitations of the method. The results show that, although VOODOO exhibits some lack of accuracy in off-design conditions due to the loss of spatial correlation, it is able to overcome some major restrictions that affect all similitude methods.

show abstract

Section: Test Case 1: Two Simply Supported Platessupporting

confidence: 59%

Section: Test Case 1: Two Simply Supported Platesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation