Title :
Multibody simulation of a freight bogie with friction dampers
Author :
Bosso, N. ; Gugliotta, A. ; Somà, A.
Author_Institution :
Politecnico di Torino, Italy
Abstract :
Freight bogies are often built using a friction element instead of viscous dampers with great advantage regarding cost and maintainability. On the other hand this technical choice leads to low performance of the vehicle. The aim of this work is to evaluate the behaviour of a Y25 freight bogie that is the most diffuse in Europe where friction dampers are used to reduce vertical and hunting vibrations. The purpose is also to improve a bi-dimensional model of friction damper and to test its numerical efficiency on a whole vehicle model in a multibody code.
Keywords :
damping; digital simulation; friction; mechanical engineering computing; railways; transport control; vibration control; Y25 freight bogies; bi-dimensional model numerical efficiency; friction dampers; friction element; hunting vibrations reduction; maintainability; multibody simulation; vertical vibrations reduction; Acceleration; Analytical models; Costs; Damping; Friction; Mathematical model; Shock absorbers; Springs; Vehicles; Wheels;
Conference_Titel :
Railroad Conference, 2002 ASME/IEEE Joint
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-7452-5
DOI :
10.1109/RRCON.2002.1000092
