Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Zuzana Dimitrovová"'
Autor:
Zuzana Dimitrovová
Publikováno v:
Vibration, Vol 6, Iss 1, Pp 113-146 (2023)
This article presents a comparison between layered models of a railway track. All analyses are based on semianalytical approaches to show how powerful they can be. Results are presented in dimensionless form, making them applicable to a wide range of
Externí odkaz:
https://doaj.org/article/ca48e02ea6464bdd9597393e01c42fb6
Autor:
Zuzana Dimitrovová, Traian Mazilu
Publikováno v:
Materials, Vol 17, Iss 2, p 279 (2024)
In this paper, the interaction of a mass moving uniformly on an infinite beam on a three-layer viscoelastic foundation is analyzed with the objective of determining the lowest velocity at the stability limit, called, in this context, the critical vel
Externí odkaz:
https://doaj.org/article/927dae2fa2134d93a74b20c6e4255e03
Autor:
Zuzana Dimitrovová
Publikováno v:
Applied Sciences, Vol 13, Iss 22, p 12356 (2023)
Ballasted railway tracks can be modeled using reduced/simplified models composed of several layers of discrete components. This paper deals with the two-layer model, which is very popular due to its computational efficiency. In order to provide some
Externí odkaz:
https://doaj.org/article/0636778e71bb4fe6936cfdfe79a2b956
Publikováno v:
Vibration, Vol 4, Iss 1, Pp 151-174 (2021)
In this paper, the three-layer model of ballasted railway track with discrete supports is analyzed to access its applicability. The model is referred as the discrete support model and abbreviated by DSM. For calibration, a 3D finite element (FE) mode
Externí odkaz:
https://doaj.org/article/533535229c574761b86eacfa77d54f26
Publikováno v:
Materials, Vol 14, Iss 23, p 7264 (2021)
After years of using geosynthetics in civil engineering and infrastructure construction, it has recently become necessary to consider the possibility of recycling and reusing these materials. This paper presents the results of laboratory tests of the
Externí odkaz:
https://doaj.org/article/affefcd4c8934275a55a7047f005be84
Autor:
André Rodrigues, Zuzana Dimitrovová
Publikováno v:
Latin American Journal of Solids and Structures, Vol 12, Iss 8, Pp 1540-1564
AbstractThis paper addresses the Caughey Absorbing Layer Method (CALM) performance in the one-dimensional problem and its implementation in commercial software, with possibility of direct extension to two-dimensions. The adequacy and numerical effici
Externí odkaz:
https://doaj.org/article/c7408cbf99fb46ee9c3fbb629af43486
Publikováno v:
Journal of Vibration Engineering & Technologies.
Autor:
Zuzana Dimitrovová
Publikováno v:
Applied Mathematical Modelling. 100:192-217
The study analyzes the dynamic interaction of proximate masses using a new form of semi-analytical results for the moving mass problem developed by the author. This paper presents the results for a particular case of two moving masses of equal value
Autor:
Zuzana Dimitrovová
Publikováno v:
Meccanica. 55:2353-2389
In this paper the new semi-analytical solution for the moving mass problem on massless foundation, published by the author of this paper, is extended to account for inertial foundation modelled by a continuous homogeneous finite depth foundation with
Autor:
Zuzana Dimitrovová
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Sem PDF conforme despacho. In this paper a semi-analytical solution for transverse vibrations induced by a moving oscillator is derived and validated. It is assumed that the oscillator is moving uniformly on an infinite beam, which may be subjected t