| 尖轨轨下采用弹性滑床板对轮轨动力性能影响 |
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| 引用本文： | 朱剑月,罗雁云.尖轨轨下采用弹性滑床板对轮轨动力性能影响[J].铁道学报,2004,26(1):77-81. |
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| 作者姓名： | 朱剑月 罗雁云 |
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| 作者单位： | 同济大学,铁道与城市轨道交通研究院,上海,200331 |
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| 基金项目： | 上海铁路局科技开发资助项目 (BT99 40 ) |
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| 摘 要： | 通过建立道岔垂向几何不平顺及刚度不均匀激扰模型 ,运用车辆 轨道耦合动力学理论 ,模拟计算了提速列车对提速道岔的动力影响。详细比较了提速道岔尖轨轨下采用弹性滑床板后提速列车对提速道岔的动力作用性能 ,并进行了实验验证。结果表明 ,提速道岔尖轨轨下采用弹性滑床板后可大大减轻基本轨至尖轨区过渡段轮 /岔垂向相互作用 ,有效地改善道岔的动力性能 ,延长滑床板及道岔的使用寿命。
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| 关 键 词： | 提速道岔 尖轨 弹性滑床板 轮轨相互作用 |
| 文章编号： | 1001-8360(2004)01-0077-05 |
| 修稿时间： | 2003年5月20日 |
On the Effect of Applying the Elastic Baseplate under the Switch Rail on the Wheel-Rail Dynamic Characteristics |
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| ZHU Jian-yue,LUO Yan-yun.On the Effect of Applying the Elastic Baseplate under the Switch Rail on the Wheel-Rail Dynamic Characteristics[J].Journal of the China railway Society,2004,26(1):77-81. |
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| Authors: | ZHU Jian-yue LUO Yan-yun |
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| Abstract: | With the excitation models of the vertical geometric irregularities and stiffness unevenness on turnouts,the dynamic effect of the speed-raising trains on turnouts is investigated with the theory of vehicle-track coupling dynamics. The dynamic characteristic of the turnouts is compared in detail after the elastic baseplates being applied. The results show that the elastic baseplates under the switch rail could alleviate the vertical wheel/frog interaction effectively from the rail to the switch rail, improve the dynamic characteristic of the turnouts and extend the usage life of the baseplates and the turnouts. |
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| Keywords: | speed-raising turnout switch rail elastic baseplate wheel-rail interaction |
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