轨道交通车辆三维布线占空比算法研究
都青华1,2周勇志2
Duty Cycle Algorithm for 3D Cable Routing in Rail Transit Vehicles
DU Qinghua1,2ZHOU Yongzhi2
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作者信息:1.西南交通大学机械工程学院，610031，成都
2.中车长春轨道客车股份有限公司国家轨道客车工程研究中心，130062，长春
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Affiliation:1.School of Mechanical Engineering， Southwest Jiaotong University，610031，Chengdu, China
2.National Engineering Research Center of Railway Vehicles, CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.02.026
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中图分类号/CLCN:U270.38
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栏目/Col:应用技术
摘要:
［目的］随着高速列车、城际列车等轨道交通车辆的广泛应用，其产品功能需求不断增加，导致车辆电缆设计复杂度逐步提升。为实现线缆布线占空比的快速计算、分析与预警，提升线缆设计与组装后的散热性能、电磁兼容性能等安全可靠性，特对轨道交通车辆三维布线占空比算法进行研究，以期提升轨道交通车辆产品性能。［方法］通过合并简化电缆分支，计算合并后的等效直径，并与线槽等布线空间容量进行比对分析，确保三维布线的电气特性与布线空间的匹配性。同时，建立了线槽和通道的标准化或参数化模型库及布线规范，以实现线槽和通道的快速复用，提升设计效率。［结果及结论］通过三维布线占空比算法的研究与验证，实现了占空比的自动计算和预警功能，有效减少了设计错误，缩短了设计周期，提高了线缆布局的合理性和安全性。在占空比监测验证过程中，关键路径节点的线缆占空比得到了实时计算与监测，有效避免了电缆过载风险，延长了电缆使用寿命。
Abstracts:
［Objective］ With the widespread application of rail transit vehicles such as high-speed and intercity trains, the increasing functional demands for these products have led to greater complexity in cable design. To enable rapid calculation, analysis, and warning of cable routing duty cycles, and to improve the safety and reliability for heat dissipation and electromagnetic compatibility after cable design and assembly, a duty cycle algorithm for 3D cable routing in rail transit vehicles is investigated, aiming to enhance the product performance. ［Method］ Through merging-simplifying cable branches and calculating the equivalent diameter of the merged cables, the results are compared and analyzed against the routing space capacity such as cable ducts, the compatibility between the electrical characteristics of 3D cable routing and the available space is ensured. Meanwhile, a standardized or parametrized model library of cable ducts and channels is established along with routing specifications, in order to facilitate quick reuse and improve design efficiency. ［Result & Conclusion］ The research and validation of the 3D cable routing duty cycle algorithm realize automated duty cycle calculation and early-warning functions, effectively reducing design errors, shortening the design cycle, and enhancing the rationality and safety of cable layouts. During duty cycle monitoring and validation process, the duty cycle of critical path nodes is calculated and monitored in real time, effectively mitigating cable overload risks and extending cable service life.
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