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| The vertical vibration analysis of vehicle-track-bridge system based on wavelet finite element method |
| Received:October 21, 2010 Revised:February 10, 2011 |
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| DOI：10.7511/jslx20125008 |
| KeyWord:vehicle-track-bridge interaction equation of motion B-spline wavelet on the interval finite element method |
| Author | Institution |
| 肖祥 |
武汉理工大学 交通学院, 武汉 ;中南大学 土木建筑学院, 长沙 ;高速铁路建造技术国家工程实验室, 长沙 |
| 任伟新 |
中南大学 土木建筑学院, 长沙 ;高速铁路建造技术国家工程实验室, 长沙 |
| 贺文宇 |
中南大学 土木建筑学院, 长沙 ;高速铁路建造技术国家工程实验室, 长沙 |
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| Abstract: |
| The vertical motion equation of the vehicle-track-bridge system is established based on wavelet finite element method in this paper.The vehicle,track and bridge are regarded as an integrated system.The rail and bridge are discredited by B-spline wavelet beam element,while the rails bed between the rail and bridge is modeled by uniform distribution springs and dampers.On the basis of the virtual work principle,the vertical vibration analysis model of a 4-axis vehicles-track-bridge using wavelet finite element is established.Numerical examples demonstrate that:adopting B-spline wavelet element can greatly reduce the degrees of freedom,and thereby reduce the calculation work and time. |
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