| 基于不同线路条件下的车辆动力学性能分析 |
| 投稿时间：2021-08-17 修订日期：2021-08-29 点此下载全文 |
| 引用本文：李响.基于不同线路条件下的车辆动力学性能分析[J].计算机辅助工程,2021,30(4):. |
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| 基金项目:江苏师范大学博士学位教师科研启动项目(19XSRX015) |
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| 中文摘要:随着我国在既有线上的线路改造和载运量的不断增加，对线路参数的设计要求也随之提高。应用动力学方法建立车辆-轨道系统动力学模型，研究不同曲线半径和线路激励对车辆动力学性能的影响。研究结果表明：增加曲线半径有利于增加车辆曲线通过安全性，车辆经过曲线线路连接处时脱轨概率变大，驶入曲线时的脱轨系数明显高于驶出曲线，重点考虑曲线线路连接位置处的车辆通过速度以及车辆运行状态；适当增加曲线半径可以减少轮轨间磨耗，有效降低磨耗速度；轨道激励变化对车辆临界速度的影响较大，应根据实际运行工况模拟得出最佳临界速度范围。 |
| 中文关键词:车辆-轨道系统 曲线参数 轨道激励 动力学性能 |
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| Analysis of Vehicle Dynamic Performance Based on Different Line Conditions |
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| Abstract:With the improvement of existing lines and the increase of carrying capacity, the design requirements of line parameters are also improved. The dynamic model of vehicle-track system is established by dynamic method, and the influence of different curve radius and line excitation on vehicle dynamic performance is studied. The results show that increasing the curve radius is conductive to increasing the curve safety. When the vehicle passes through the curve line connection, the derailment probability becomes larger, and the derailment coefficient of the vehicle entering the curve is significantly higher than that of the vehicle leaving the curve. The passing speed and running state of the vehicle at the curve line connection should be considered. Increasing the curve radius properly can reduce the wear of wheel/rail and effectively reduce the wear speed. The change of track excitation has a great influence on the critical speed of vehicle, so the optimal range of critical speed should be obtained according to the actual operating conditions. |
| keywords:Vehicle-track system Curve parameters Track excitation Dynamic performance |
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