Design method of LM thin flange wheel profile based on NURBS
Design method of LM thin flange wheel profile based on NURBS
复制标题
基于NURBS的LM薄凸缘轮型线设计方法
DOI：
10.1080/00423114.2019.1657908
复制
发表时间：
2021-01
影响因子：
3.6
通讯作者：
Qian Xiao
中科院分区：
文献类型：
--
作者：
Fengtao Lin;Shuang Zhou;Xiaoqing Dong;Qian Xiao
磨耗轮对的维修策略对铁路的维修成本有着重要的影响。重载货车的LM磨损车轮经常被重新成型为其原始标准形状，这种过度的材料去除可能会降低车轮的使用寿命。针对LM砂轮廓形的几何特征，应用非均匀有理B样条理论，建立了LM砂轮廓形重构的新方法。采用粒子群优化方法对LM薄轮缘重成形车轮进行设计，该方法能够兼顾列车运行安全和材料去除量最小等多个目标。通过车辆-轨道耦合动力学模型的集成，设计出轮缘厚度为32 mm的新型车轮型面，与原标准型面相比，平均磨耗功降低了55.97%。在优化后的砂轮廓形下，侧向力和最大接触应力的均方根值减小，材料去除量减少。通过设计轮缘厚度为28 ~ 33 mm的薄轮缘型面，该设计方法可为LM轮的修形维护提供支持。
The maintenance strategies of the worn wheels have an important impact on maintenance cost of railway. LM worn wheels of heavy haul wagons are often re-profiled to their original standard form, and this excessive removal of material could reduce the wheel service life. A new LM wheel profile reconstruction method was established by taking into account the geometrical characteristics of the LM wheel profile and applying the Non-Uniform Rational B-Spline theory. The design of LM thin flange re-profiling wheel can be accomplished by using Particle Swarm Optimization method which handles multiple objectives including train operation safety concerns, and minimizing material removal. A new wheel profile with a flange thickness of 32 mm can be designed by the integration of vehicle-track coupling dynamics model, and the results showed that the mean wear work is reduced by 55.97% compared with the original standard profile. Under the optimized wheel profile, the root mean square value of the lateral force and the maximum contact stress is reduced, and the amount of material removed is decreased. The design method can provide support for the LM wheel re-profiling maintenance, by designing the thin flange profiles of a flange thickness of 28∼33 mm.
登录
查看更多内容
影响因子：
5
作者：
H. Jahed;B. Farshi;M. A. Eshraghi;A. Nasr
通讯作者：
H. Jahed;B. Farshi;M. A. Eshraghi;A. Nasr
影响因子：
3.6
作者：
R. Fröhling
通讯作者：
R. Fröhling
影响因子：
3.6
作者：
I. Zobory
通讯作者：
I. Zobory
DOI：
10.4015/s1016237203000109
发表时间：
2003-04
期刊：
Biomedical Engineering: Applications, Basis and Communications
影响因子：
--
作者：
Meng-Hsiang Yang;K. Huang;C. F. Huang;S. S. Huang-S.;M. Young
通讯作者：
Meng-Hsiang Yang;K. Huang;C. F. Huang;S. S. Huang-S.;M. Young
影响因子：
3.6
作者：
T. Jendel;M. Berg
通讯作者：
T. Jendel;M. Berg