Volume 4, Issue 3 (9-2014)                   IJAE 2014, 4(3): 812-826 | Back to browse issues page

XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Younesian D, Fallahzadeh M S. Numerical and Experimental Analysis of Nonlinear Parabolic Springs Employed in Suspension System of freight cars. IJAE. 2014; 4 (3) :812-826
URL: http://www.iust.ac.ir/ijae/article-1-279-en.html
Abstract:   (2897 Views)
Nonlinear vibration of parabolic springs employed in suspension system of a freight car has been studied in this paper. First, dynamical behavior of the springs is investigated by using finite element method and the obtained results are then used in vibration analysis of a railway freight car. For this purpose, dynamics of a parabolic spring subjected to a cyclic excitation has been studied in the frequency range of 2 to 15 Hz. By utilizing an experimental setup, equivalent static and dynamic stiffness and damping of the spring have been obtained and compared with theoretical results. Different classes of rail irregularities are taken into account to excite the vehicle. Bond Graph method is employed to extract the equations of motion of the system and validity of the obtained equations is investigated. Finally, a parametric study is carried out and the influence of vehicle velocity and rail irregularity on vertical acceleration of the freight car has been examined.
Full-Text [PDF 472 kb]   (1882 Downloads)    
Type of Study: Research | Subject: General

Add your comments about this article : Your username or Email:
CAPTCHA code

© 2018 All Rights Reserved | International Journal of Automotive Engineering

Designed & Developed by : Yektaweb