Advanced parametric space-frequency separated representations in structural dynamics: A harmonic–modal hybrid approach
Article dans une revue avec comité de lecture
This paper is concerned with the solution to structural dynamics equations. The technique here presented is closely related to Harmonic Analysis, and therefore it is only concerned with the long-term forced response. Proper Generalized Decomposition (PGD) is used to compute space-frequency separated representations by considering the frequency as an extra coordinate. This formulation constitutes an alternative to classical methods such as Modal Analysis and it is especially advantageous when parametrized structural dynamics equations are of interest. In such case, there is no need to solve the parametrized eigenvalue problem and the space-time solution can be recovered with a Fourier inverse transform. The PGD solution is valid for any forcing term that can be written as a combination of the considered frequencies. Finally, the solution is available for any value of the parameter. When the problem involves frequency-dependent parameters the proposed technique provides a specially suitable method that becomes computationally more efficient when it is combined with a modal representation.
Files in this item
Showing items related by title, author, creator and subject.
Article dans une revue avec comité de lectureBORZACCHIELLO, Domenico; AGUADO, José Vicente; CHINESTA, Francisco (Springer Verlag, 2019)We discuss the use of hierarchical collocation to approximate the numerical solution of parametric models. With respect to traditional projection-based reduced order modeling, the use of a collocation enables non-intrusive ...
Induction machine model with finite element accuracy for condition monitoring running in real time using hardware in the loop system Article dans une revue avec comité de lectureSAPENA-BAÑÓ, Angel; CHINESTA, Francisco; AGUADO, Jose Vicente; BORZACCHIELLO, Domenico; PUCHE-PANADERO, Rubén (Elsevier, 2019)Most industrial processes are run by induction machines (IMs). Condition monitoring of IM assures their continuity of service, and it may avoid highly costly breakdowns. Among the methods for condition monitoring, on-line ...
Article dans une revue avec comité de lectureAGUADO, Jose Vicente; BORZACCHIELLO, Domenico; KOLLEPARA, Kiran S.; CHINESTA, Francisco; HUERTA, Antonio (Springer Verlag, 2019)Tensor representations allow compact storage and efficient manipulation of multi-dimensional data. Based on these, tensor methods build low-rank subspaces for the solution of multi-dimensional and multi-parametric models. ...
Intelligent assistant system as a context-aware decision-making support for the workers of the future Article dans une revue avec comité de lectureBELKADI, Farouk; DHUIEB, Mohamed Anis; AGUADO, José Vicente; LAROCHE, Florent; BERNARD, Alain; CHINESTA, Francisco (Elsevier, 2020)The key role of information and communication technologies (ICT) to improve manufacturing productivity within the paradigm of factory of the future is often proved. These tools are used in a wide range of product lifecycle ...
Communication avec acteNASRI, Mohamed Aziz; AGUADO, Jose Vicente; AMMAR, Amine; CUETO, Elias; CHINESTA, Francisco; MOREL, Franck; ROBERT, Camille; EL AREM, Saber (Key Engineering Materials, 2015)Forming processes usually involve irreversible plastic transformations. The calculation in that case becomes cumbersome when large parts and processes are considered. Recently Model Order Reduction techniques opened new ...