| 摩擦调节剂抑制钢轨波磨的机理研究 |
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| 引用本文： | 肖祥龙,陈光雄,莫继良,朱旻昊.摩擦调节剂抑制钢轨波磨的机理研究[J].振动与冲击,2013,32(8):166-170. |
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| 作者姓名： | 肖祥龙 陈光雄 莫继良 朱旻昊 |
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| 作者单位： | 西南交通大学 摩擦学研究所，成都610031 |
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| 摘 要： | 基于轮轨之间的摩擦耦合自激振动引起钢轨波磨的观点，论文建立了车辆稳态通过小半径曲线时由轮对－钢轨－轨枕组成的轮轨系统有限元弹性振动摩擦自激振动有限元模型，用ABAQUS软件对该模型的运动稳定性进行了分析，重点研究了轮轨摩擦系数和蠕滑力-蠕滑率曲线负斜率对轮轨系统摩擦自激振动的影响。计算结果显示，轮轨摩擦系数对轮轨摩擦自激振动有重要影响，当控制摩擦系数 时可以消除钢轨磨耗型波磨，蠕滑力-蠕滑率曲线负斜率对钢轨波磨有显著影响。
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| 关 键 词： | 摩擦 蠕滑力 自激振动 轮轨 钢轨波磨 |
| 收稿时间： | 2012-3-8 |
| 修稿时间： | 2012-5-25 |
Study on the mechanism for friction modifier suppressing wear-type rail corrugation |
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| ＸＩＡＯＸｉａｎｇ,ｌｏｎｇ,ＣＨＥＮＧｕａｎｇ,ｘｉｏｎｇ,ＭＯＪｉ,ｌｉａｎｇ,ＺＨＵＭｉｎ,ｈａ.Study on the mechanism for friction modifier suppressing wear-type rail corrugation[J].Journal of Vibration and Shock,2013,32(8):166-170. |
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| Authors: | ＸＩＡＯＸｉａｎｇ ｌｏｎｇ ＣＨＥＮＧｕａｎｇ ｘｉｏｎｇ ＭＯＪｉ ｌｉａｎｇ ＺＨＵＭｉｎ ｈａ |
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| Affiliation: | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | From the viewpoint of friction-coupling self-excited vibration of a wheelset-track system causing wear-type rail corrugation, a finite element model of a wheelset-track system when a vehicle negotiates a tight curve at a steady state is established, which includes a wheelset, two rails and a series of sleepers. The motion stability of the model is analyzed using ABAQUS package. The study emphasis is laid on the effect of friction coefficient and negative creep force-creepage slope on rail corrugation. Results show that the friction coefficient has a large effect on self-excited vibration of a wheelset-track system. It is found that when the friction coefficient , wear-type rail corrugation can be eliminated. The negative creep force-creepage slope has a great effect on wear-type rail corrugation. |
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| Keywords: | Friction Creep force self-excited vibration Wheel-track Wear-type corrugation |
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