CAJ | 학술논문

为了为接触网覆冰的在线监测提供理论基础，对覆冰后接触网的静态响应进行研究。首先，利用ANSYS建立6跨张力自动补偿的简单链型悬挂接触网的有限元模型，对不同覆冰厚度时的接触网的静态响应进行仿真分析，得到随覆冰厚度的变化的接触线和承力索的弛度变化以及下锚处位移。然后，基于相似理论建立1/50的6跨接触网小比例模型。通过模型试验得到不同厚度下接触线和承力索的下锚处位移，对比小比例模型的仿真和试验结果验证了小比例模型的可用性。将模型试验结果推广到实际接触网，对比推广后的试验结果和实际接触网的仿真结果，进一步验证了小比例模型的正确性。该小比例模型可为深入研究接触网特性试验提供试验基础。
위료위접촉망복빙적재선감측제공이론기출，대복빙후접촉망적정태향응진행연구。수선，이용ANSYS건립6과장력자동보상적간단련형현괘접촉망적유한원모형，대불동복빙후도시적접촉망적정태향응진행방진분석，득도수복빙후도적변화적접촉선화승력색적이도변화이급하묘처위이。연후，기우상사이론건립1/50적6과접촉망소비례모형。통과모형시험득도불동후도하접촉선화승력색적하묘처위이，대비소비례모형적방진화시험결과험증료소비례모형적가용성。장모형시험결과추엄도실제접촉망，대비추엄후적시험결과화실제접촉망적방진결과，진일보험증료소비례모형적정학성。해소비례모형가위심입연구접촉망특성시험제공시험기출。
In order to provide theoretical foundation for on-line monitoring of catenary, the static response of ice-coated catenary was investigated. First, a six-span automatic tensioned simple catenary finite element model was built via ANSYS, the static response of ice-coated catenary was conducted with different ice thicknesses, sag variations and end anchorage displacements of contact and messenger wire with different ice thickness were obtained. Then a 1/50 scale model of six-span catenary was constructed based on the similarity theory. End anchorage displacements of contact and messenger wire with diverse ice thicknesses were achieved through small-scale model test. Comparison of the displacements between small-scale model test and finite element simulation validated the feasibility of small-scale model. The results were converted to real catenary, which were compared with simulation results of real catenary, confirmed the correctness of the small-scale model. This small-scale model offers a basis for further research of catenary characteristics.