Artículos de revistas
Longitudinal Train Dynamics [dinâmica Longitudinal Do Trem]
Registro en:
Revista Brasileira De Ciencias Mecanicas/journal Of The Brazilian Society Of Mechanical Sciences. , v. 18, n. 2, p. 107 - 116, 1996.
1007386
2-s2.0-5844320271
Autor
Barbosa R.S.
Weber H.I.
Institución
Resumen
Almost 63% of the goods transported by railways in Brazil use heavy hall trains (long trains with more than 100 vagons over 100 ton). There is a tendency at the Railway Operators to increase the train's length to improve transport produtivity. This strategy increases the loads at the vagon's couplers causing failures. Analytical tools may calculate the dynamic behavior searching ways to minimize the coupler force. This work presents the development of the longitudinal train dynamic simulation model. Mechanical components, physical model and mathematical equations are described. The Transition Matrix obtained from the eigenvectors and eigenvalues and the Convolution Integral are used to solve differential equations of the non homogeneous system. The eigen properties were identified and a braking process was simulated. Modes and natural frequencies are shown and the coupler's maximum longitudinal stress region may be observed in the results. 18 2 107 116 Barbosa, R.S., (1993) Estudo da Dinâmica Longitudinal do Trem, , Dissertaçäo de Mestrado, Universidade Estadual de Campinas (Unicamp), Campinas, São Paulo, Brasil Felicio, L.C., (1984) Modelagem e Simulação do Comportamento Dinâmico de uma Composição Ferroviária, , Instituto de Pesquisas Tecnológicas do Estado de São Paulo S/A IPT, Centro de Desenvolvimento Ferroviário Relatório Técnico no 20.311 Garg, V.K., Dukkipati, R.V., (1984) Dynamics of Railway Vehicle Systems, , USA, Academic Press Gasch, R., Knothe, K., (1987) Strukturdynamik Diskreter Systeme, 1. , Springer-Verlag Mucheroni, M.F., (1994) Introduçäo à Dinâmica dos Sistemas, , Anotações de Aula, Escola de Engenharia de São Carlos EESC - USP Schwarz, R., Identifikation Mechanischer Systeme (1980) Fortschritsberichte der VDI, , Reihe 8 (30)