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Green's functions for analysis of dynamic response of wheel/rail to vertical excitation
- Source :
-
Journal of Sound & Vibration . Sep2007, Vol. 306 Issue 1/2, p31-58. 28p. - Publication Year :
- 2007
-
Abstract
- An analytical model to simulate wheel/rail interaction using the Green''s functions method is proposed in this paper. The model consists of a moving wheel on a discretely supported rail. Particularly for this model of rail, the bending and the longitudinal displacement are coupled due to the rail pad and a complex model of the rail pad is adopted. An efficient method for solving a time-domain analysis for wheel/rail interaction is presented. The method is based on the properties of the rail''s Green functions and starting to these functions, a track''s Green matrix is assembled for the numerical simulations of wheel/rail response due to three kinds of vertical excitations: the steady-state interaction, the rail corrugation and the wheel flat. The study points to influence of the worn rail—rigid contact—on variation in the wheel/rail contact force. The concept of pinned–pinned inhibitive rail pad is also presented. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0022460X
- Volume :
- 306
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Journal of Sound & Vibration
- Publication Type :
- Academic Journal
- Accession number :
- 25833016
- Full Text :
- https://doi.org/10.1016/j.jsv.2007.05.037