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高速弓网系统动力学参数敏度分析及优化

吴孟臻 刘洋 许向红

吴孟臻, 刘洋, 许向红. 高速弓网系统动力学参数敏度分析及优化[J]. 力学学报, 2021, 53(1): 75-83. doi: 10.6052/0459-1879-20-207
引用本文: 吴孟臻, 刘洋, 许向红. 高速弓网系统动力学参数敏度分析及优化[J]. 力学学报, 2021, 53(1): 75-83. doi: 10.6052/0459-1879-20-207
Wu Mengzhen, Liu Yang, Xu Xianghong. SENSITIVITY ANALYSIS AND OPTIMIZATION ON PARAMETERS OF HIGH SPEEDPANTOGRAPH-CATENARY SYSTEM[J]. Chinese Journal of Theoretical and Applied Mechanics, 2021, 53(1): 75-83. doi: 10.6052/0459-1879-20-207
Citation: Wu Mengzhen, Liu Yang, Xu Xianghong. SENSITIVITY ANALYSIS AND OPTIMIZATION ON PARAMETERS OF HIGH SPEEDPANTOGRAPH-CATENARY SYSTEM[J]. Chinese Journal of Theoretical and Applied Mechanics, 2021, 53(1): 75-83. doi: 10.6052/0459-1879-20-207

高速弓网系统动力学参数敏度分析及优化

doi: 10.6052/0459-1879-20-207
基金项目: 1)国家自然科学基金(11672297);中国科学院战略性先导科技专项(B类)资助项目(XDB22020000)
详细信息
    作者简介:

    2)许向红, 副研究员. 主要研究领域: 受电弓力学特性与结构优化、仿生微结构设计及3D打印. E-mail: xxh@lnm.imech.ac.cn

    通讯作者:

    许向红

SENSITIVITY ANALYSIS AND OPTIMIZATION ON PARAMETERS OF HIGH SPEEDPANTOGRAPH-CATENARY SYSTEM

  • 摘要: 随着高速列车运行速度的提升, 弓网关系这一基础力学问题备受关注. 良好的弓网关系是确保列车安全高效运行、稳定可靠受流、降低接触线与受电弓滑板磨耗等的基本前提. 其中, 受电弓和接触网的动力学参数对弓网耦合作用起至关重要的作用. 本文采用弓网接触力随机统计特征作为优化目标函数,进行受电弓动力学参数的敏度分析和优化设计. 首先, 建立了二维弹性链悬挂接触网-三质量块受电弓动力学模型,根据EN50318: 2018标准验证了动力学建模和分析结果的正确性. 然后, 基于高速弓网系统的动力学仿真, 进行了DSA380型高速受电弓三质量块参数的动力学敏度分析, 确定了9个动力学参数的敏感度级别, 弓头等效质量敏度评级最高,下框架等效阻尼次之, 下框架等效质量和上框架等效阻尼第三. 最后, 研究了弓头等效刚度和等效阻尼联合变化对弓网耦合动力学性能的影响,给出了提升弓网耦合性能的弓头双参数优化方案, 建议同时减小弓头等效阻尼和增大弓头等效刚度, 能够实现比单参数优化更好的弓网耦合性能.

     

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  • 收稿日期:  2020-06-16

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