A review of dynamics modelling of friction draft gear

Q Wu, C Cole, S Luo, M Spiryagin - Vehicle System Dynamics, 2014 - Taylor & Francis
Longer and heavier trains mean larger in-train forces and more complicated force patterns.
Practical experience indicates that the development of fatigue failure of coupling systems in …

Alternative friction models for braking train dynamics

RA Oprea, C Cruceanu, MA Spiroiu - Vehicle System Dynamics, 2013 - Taylor & Francis
Braking dynamics plays an essential role in ensuring the comfort and running safety of
trains. Due to the complexity of the phenomena involved and the presence of dry friction …

A constrained motion perspective of railway vehicles collision

RA Oprea - Multibody System Dynamics, 2013 - Springer
Impacts, friction, and normal contact forces occur in the railway vehicles couplers. This paper
presents a novel nonsmooth model of the train collision; until now, only penalized models …

Longitudinal dynamics of trains—a non-smooth approach

RA Oprea - Nonlinear Dynamics, 2012 - Springer
An efficient and straightforward algorithm for the integration of the constrained systems is
developed in the present work. Some of the fundamental issues of contact dynamics are …

[PDF][PDF] Modeling the buffers hysteretic behavior for evaluation of longitudinal dynamic in-train forces

C Craciun, AM Mitu, C Cruceanu… - Proceedings of the …, 2012 - researchgate.net
In this paper the authors develop a simulation program for analyzing the dynamic behavior
of friction ring buffers that equip railway vehicles, based on their hysteretic characteristics …

Aspects regarding braking process of passenger trains with different braking systems in composition

C Cruceanu, C Crăciun - IOP Conference Series: Materials …, 2018 - iopscience.iop.org
The paper investigates the influence of different braking systems on the braking process of
railway passenger vehicles, considered individual, as well as in train composition. The study …

Computer aided study regarding the influence of filling characteristics on the longitudinal reactions within the body of a braked train

C Cruceanu, R Oprea, M Spiroiu, C Craciun… - Proceedings of the …, 2009 - dl.acm.org
This paper describes a computer aided approach to the study of the longitudinal dynamics of
a braked train. The numerical simulation of the phenomena takes into account the delay …

[PDF][PDF] Simulation of the longitudinal dynamic forces developed in the body of passenger trains

C Craciun, T Mazilu - Annals of the Faculty of Engineering …, 2014 - annals.fih.upt.ro
This paper focuses on a simulation program for evaluating the longitudinal dynamic forces
operating upon the traction, collision and coupling devices during the train braking process …

Optimisations of draft gear designs for heavy haul trains

Q Wu - 2016 - acquire.cqu.edu.au
This thesis developed a parallel multiobjective optimisation methodology to enable fast
optimisations of draft gear designs for heavy haul trains. Improvements were achieved in the …

Longitudinal dynamic force distribution for different hysteretic buffer characteristics

CI Crăciun, C Cruceanu - IOP Conference Series: Materials …, 2018 - iopscience.iop.org
The study of longitudinal dynamics of trains during braking has and will continue to be an
important subject, capable of generating numerous research themes and discussions on …