Finite element procedures for nonlinear structures in moving coordinates. Part II: Infinite beam under moving harmonic loads

Nguyen, Vu‐Hieu; Duhamel, Denis

doi:10.1016/j.compstruc.2008.04.010

Cited by 59 publications

(33 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These values are selected in such a way that to provide a foundation model that is more compliant with respect to that of the linear elastic foundation for small beam displacements and, at the same time, stiffer for large displacements, as proposed by many authors (see e.g. Nguyen and Duhamel [18]). Fig.…”

Section: Beams Lying On a Nonlinear Elastic Foundationmentioning

confidence: 99%

Numerical Dynamic Analysis of Beams on Nonlinear Elastic Foundations Under Harmonic Moving Load

Froio¹,

Moioli²,

Rizzi³

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

View full text Add to dashboard Cite

show abstract

Section: Beams Lying On a Nonlinear Elastic Foundationmentioning

confidence: 99%

Numerical Dynamic Analysis of Beams on Nonlinear Elastic Foundations Under Harmonic Moving Load

Froio¹,

Moioli²,

Rizzi³

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

View full text Add to dashboard Cite

show abstract

“…In addition, the sleeper dynamic response is important because it affects the stability of the railway track and the maximum speed of the train. Substantial researches using analytic methods for rail track have been carried out, for example : the effect of wheel-rail contact forces [17,18] or the vibration of the railway track (by considering the model of a ballasted track with discrete supports [8,9,13,14,1] or the model of the infinite beam placed on a continuous foundation [10,7,6,11]). The studies of each component of the rail track were performed on the rail [19,16,15], or on the ballast [20,22].…”

Section: Introductionmentioning

confidence: 99%

Analytical Model of the Dynamics of Railway Sleeper

Tran¹,

Hoang²,

Forêt³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

Self Cite

View full text Add to dashboard Cite

Abstract. The periodically supported beam is an analytical model of the dynamics of a railway track, where each rail together with its supports (sleepers) is independent of the other one. However, the sleepers connect the two rails and their behaviour could influence the response. This study develops an analytical model for this type of track by considering the sleepers as EulerBernoulli beams resting on a visco-elastic foundation. By using a relation between the reaction forces and displacement of the periodically supported beam [1], we can obtain a dynamic equation of a sleeper based on Dirac delta distribution. Then, the response of the sleepers can be obtained by using the Green function. This model is a fast method to calculate the dynamic responses of railway sleepers and track.

show abstract

“…s K is an additional parameter defining the foundation, usually termed as the shear constant of the foundation (Kargarnovin et al 2005, Nguyen and Duhamel 2008, Ansari et al 2011, Basu and Kameswara 2013. By substituting of Eq.…”

Section: Mathematical Modelmentioning

confidence: 99%

Effect of Open Crack on Vibration Behavior of a Fluid-Conveying Pipe Embedded in a Visco-Elastic Medium

Eslami

Maleki

Rezaee

2016

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

In this paper vibration behavior of a fluid-conveying cracked pipe surrounded by a visco-elastic medium has been considered. During this work, the effect of an open crack parameters and flow velocity profile shape inside the pipe on natural frequency and critical flow velocity of the system has been analytically investigated. An explicit function for the local flexibility of the cracked pipe has been offered using principle of the fracture mechanics. Comparison between the results of the present study and the experimental data reported in the literature reveals success and high accuracy of the implemented method. It is demonstrated that the existence of the crack in the pipe, decreases the natural frequency and the critical flow velocity so that the system instability onsets at a lower flow velocity in comparison with the intact pipe. Results indicate that the flow velocity profile shape inside the pipe caused by the viscosity of real fluids, significantly affects the critical flow velocity of both intact and fluid-conveying cracked pipe. For instance, as the flow-profilemodification factor decreases from 1.33 to 1.015, the dimensionless critical flow velocity of intact clamped-clamped pipe increases from 5.45 to 6.24.

show abstract

Finite element procedures for nonlinear structures in moving coordinates. Part II: Infinite beam under moving harmonic loads

Cited by 59 publications

References 11 publications

Numerical Dynamic Analysis of Beams on Nonlinear Elastic Foundations Under Harmonic Moving Load

Numerical Dynamic Analysis of Beams on Nonlinear Elastic Foundations Under Harmonic Moving Load

Analytical Model of the Dynamics of Railway Sleeper

Effect of Open Crack on Vibration Behavior of a Fluid-Conveying Pipe Embedded in a Visco-Elastic Medium

Contact Info

Product

Resources

About