转盘式转向架车辆动力学性能分析
胡定祥1徐步震1贾小平1,2杨陈1金鑫1
Dynamics Performance Analysis of Turntable Bogie Vehicles
HU Dingxiang1XU Buzhen1JIA Xiaoping1,2YANG Chen1JIN Xin1
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作者信息:1.中车南京浦镇车辆有限公司技术中心，210031，南京
2.西南交通大学牵引动力国家重点实验室，610031，成都
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Affiliation:1.Technology Center of CRRC Nanjing Puzhen Co., Ltd., 210031, Nanjing, China
2.State Key Laboratory of Traction Power, Southwest Jiaotong University, 610031, Chengdu, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.07.037
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中图分类号/CLCN:U270.33；U279
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栏目/Col:研究报告
摘要:
［目的］相比于传统转向架，新型转盘式转向架具有较小的回转阻力系数及良好的曲线通过性能，因此有必要对其车辆动力学性能进行分析。［方法］基于SIMPACK动力学软件，建立转盘式转向架和传统转向架车辆动力学模型；对比分析了两种转向架形式下的回转阻力系数、曲线通过性能、车辆动力学性能；研究了轴承摩擦因数对转盘式转向架车辆的动力学性能影响。［结果及结论］两种转向架形式下，当通过曲线半径为110m、设置限速为30km/h时，在新轮和磨耗轮工况下，转盘式转向架车辆的脱轨系数、磨耗数、轮轴横向力显著优于传统转向架车辆，转盘式转向架车辆的轮重减载率略优于传统转向架车辆。当以不同车辆运行速度通过直线线路时，两种转向架形式的车辆平稳性随着车辆运行速度的增大而增大。在新轮工况下，转盘式转向架车辆的横向平稳性明显优于传统转向架车辆，转盘式转向架车辆的垂向平稳性略优于传统转向架车辆。在磨耗轮工况下，转盘式转向架车辆的横向平稳性和垂向平稳性均明显优于传统转向架车辆。当转盘式转向架车辆的回转受到限制时，车辆的稳定性、横向平稳性和曲线通过安全性均随着轴承摩擦因数的增加而恶化，但各值均在标准规定范围内。
Abstracts:
［Objective］ Compared to conventional bogies, the new type of turntable bogie exhibits smaller slewing resistance coefficients and better curve negotiation performance. Therefore, it is necessary to analyze the vehicle dynamics performance. ［Method］ Using SIMPACK dynamics software, vehicle dynamics models with turntable bogies and conventional bogies are established. A comparative analysis is conducted on the slewing resistance coefficients, curve negotiation performance, and vehicle dynamics performance of the two types of bogies. The impact of bearing friction coefficient on the dynamics performance of vehicle with turntable bogies is studied. ［Result & Conclusion］ For the two bogie types, under conditions where the curve radius is 110 m and the speed limit is set to 30 km/h, the derailment coefficient, wear rate, and axial lateral force of TBV (turntable bogie vehicle) are significantly better than those of CBV (conventional bogie vehicle) under both new and worn wheels working conditions. The wheel load reduction rate of TBV is slightly better than that of CBV. As the vehicle passing straight tracks at different speeds, the vehicle stability of both bogie types increases as the vehicle operating speed increases. Under new wheel working condition, the lateral stability of TBV is significantly better than that of CBV, and the vertical stability is slightly better. Under worn wheel working condition, the lateral and vertical stability of TBV are significantly better than those of CBV. When the rotation of TBV is restricted, the stability, lateral stability, and curve negotiation safety of the vehicle deteriorate with the increasing bearing friction coefficient, but all values remain within the range specified by relevant standards.
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