Abstract
A forced vibration model of a rail system was established using the Timoshenko beam theory to determine the dynamic response of a rail under time-varying load considering the damping effect and stiffness of the elastic foundation. By using a Fourier series and a numerical method, the critical velocity and dynamic response of the rail were obtained. The forced vibration model was verified by using FEM and Euler beam theory. The permanent deformation of the rail was predicted based on the forced vibration model. The permanent deformation and wear were observed through the experiment. Parametric studies were then conducted to investigate the effect of five design factors, i.e., rail cross-section shape, rail material density, rail material stiffness, containment stiffness, and damping coefficient between rail and containment, on four performance indices of the rail, i.e., critical velocity, maximum deflection, maximum longitudinal stress, and maximum shear stress.
| Original language | English |
|---|---|
| Pages (from-to) | 1547-1557 |
| Number of pages | 11 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, A |
| Volume | 37 |
| Issue number | 12 |
| DOIs | |
| State | Published - 2013 Jan 1 |
Fingerprint
Keywords
- Beam on elastic foundation
- Critical velocity
- Dynamic response
- Euler beam theory
- Timoshenko beam theory
Cite this
}
Forced vibration modeling of rail considering shear deformation and moving magnetic load. / Kim, Jun Soo; Kim, Seong Jong; Lee, Hyuk; Ha, SungKyu; Lee, Young Hyun.
In: Transactions of the Korean Society of Mechanical Engineers, A, Vol. 37, No. 12, 01.01.2013, p. 1547-1557.Research output: Contribution to journal › Article
TY - JOUR
T1 - Forced vibration modeling of rail considering shear deformation and moving magnetic load
AU - Kim, Jun Soo
AU - Kim, Seong Jong
AU - Lee, Hyuk
AU - Ha, SungKyu
AU - Lee, Young Hyun
PY - 2013/1/1
Y1 - 2013/1/1
N2 - A forced vibration model of a rail system was established using the Timoshenko beam theory to determine the dynamic response of a rail under time-varying load considering the damping effect and stiffness of the elastic foundation. By using a Fourier series and a numerical method, the critical velocity and dynamic response of the rail were obtained. The forced vibration model was verified by using FEM and Euler beam theory. The permanent deformation of the rail was predicted based on the forced vibration model. The permanent deformation and wear were observed through the experiment. Parametric studies were then conducted to investigate the effect of five design factors, i.e., rail cross-section shape, rail material density, rail material stiffness, containment stiffness, and damping coefficient between rail and containment, on four performance indices of the rail, i.e., critical velocity, maximum deflection, maximum longitudinal stress, and maximum shear stress.
AB - A forced vibration model of a rail system was established using the Timoshenko beam theory to determine the dynamic response of a rail under time-varying load considering the damping effect and stiffness of the elastic foundation. By using a Fourier series and a numerical method, the critical velocity and dynamic response of the rail were obtained. The forced vibration model was verified by using FEM and Euler beam theory. The permanent deformation of the rail was predicted based on the forced vibration model. The permanent deformation and wear were observed through the experiment. Parametric studies were then conducted to investigate the effect of five design factors, i.e., rail cross-section shape, rail material density, rail material stiffness, containment stiffness, and damping coefficient between rail and containment, on four performance indices of the rail, i.e., critical velocity, maximum deflection, maximum longitudinal stress, and maximum shear stress.
KW - Beam on elastic foundation
KW - Critical velocity
KW - Dynamic response
KW - Euler beam theory
KW - Timoshenko beam theory
UR - http://www.scopus.com/inward/record.url?scp=84898435963&partnerID=8YFLogxK
U2 - 10.3795/KSME-A.2013.37.12.1547
DO - 10.3795/KSME-A.2013.37.12.1547
M3 - Article
AN - SCOPUS:84898435963
VL - 37
SP - 1547
EP - 1557
JO - Transactions of the Korean Society of Mechanical Engineers, A
JF - Transactions of the Korean Society of Mechanical Engineers, A
SN - 1226-4873
IS - 12
ER -