| XIA Chen-guang,CHEN Guang-xiong,ZHU Min-hao,ZHAO Xiao-nan.Effect of Damped Coating of Wheel Web on Rail Corrugation[J],49(3):134-140 |
| Effect of Damped Coating of Wheel Web on Rail Corrugation |
| Received:August 01, 2019 Revised:March 20, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2020.03.017 |
| KeyWord:damping coating rail corrugation wheel web complex eigenvalue analysis finite element self-excited vibration |
| Author | Institution |
| XIA Chen-guang |
Tribology Research Institute, School of Materials Science and Engineering Southwest Jiaotong University, Chengdu , China |
| CHEN Guang-xiong |
Tribology Research Institute, School of Materials Science and Engineering Southwest Jiaotong University, Chengdu , China |
| ZHU Min-hao |
Tribology Research Institute, School of Materials Science and Engineering Southwest Jiaotong University, Chengdu , China |
| ZHAO Xiao-nan |
Tribology Research Institute, School of Materials Science and Engineering Southwest Jiaotong University, Chengdu , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study the effect of the damped coating of the wheel web on rail corrugation on the tight curved track. Based on the results, measures will be proposed, by which the rail corrugation can be effectively restrained. Based on the theory that friction-induced vibration causing rail corrugation, a finite element model is established using ABAQUS, which consists of wheels, rails, a number of sleepers and damped coating. The stability of the wheel-rail system on the condition of curve radius 300 meters is analyzed using the complex eigenvalue method of ABAQUS. Under the influence of saturated creep forces, the rail corrugation was prone to occur, and the unstable vibration frequency of the wheel-rail system was f=502.32 Hz. The occurring propensity of rail corrugation can be reduced by adding damped coatings on the insides and both sides of the wheel webs. At the same time, the stability of the wheel-rail system can be effectively improved. The occurring propensity of rail corrugation will be increased by adding the damped coating on the outer sides of the wheel webs. The stability of the wheel-rail system will be enhanced by adding the thickness of coating which on the inner and both sides of the wheel webs. The stability of the model with damped coating on the outer sides of wheel webs will be decreased if the thickness of coating increases. The damping coefficient of the coating make a great influence on rail corrugation. The occurring propensity of rail corrugation can be reduced by increasing the damping coefficient of the coating. Rail corrugation can be reduced or even removed, by adding the damped coating on the insides of the wheel webs under the tight curved track. Raising the damping coefficient of the coating up to 1.5e–3 can effectively relieves rail corrugation. |
| Close |
|
|
|