研究目的：为研究弹性链型悬挂高速接触网参数对受电弓/接触网系统动态性能的影响,采用三维接触网模型和质量-阻尼-刚度受电弓模型,对时速350 km弹性链型悬挂高速接触网/受电弓系统进行仿真计算和分析。考虑到接触压力和运行的安全性,对不同的动态仿真结果进行比较,据此选取合适的高速接触网参数。
研究结论：通过研究表明,应优先采用120 mm2镁铜合金接触线,张力不宜小于27 kN;承力索采用120 mm2铜合金绞线,张力约为23 kN;跨距取55~60 m;结构高度取1. 4~1. 6 m;弹性吊索张力不小于3. 5 kN;弹性吊索长度取16 ~18 m;支柱吊弦间距约为4. 5 m;接触线坡度应控制为0;尽量避免波长为吊弦间隔2~6倍的接触线不平顺。
Research purposes: In order to study the influences of the parameters for overhead contact line system with stitch wire of high—speed railway on the dynamic performances of the pantograph／overhead contact line system，a 3 D catenary model and a mass—damper—spring pantograph model were adopted to calculate and analyze the overhead contact line with stitch wire and pantograph system of 350 km／h railway．Considering the contact forces and safety。The comparisons were made for the simulation results to select the suitable parameters for the overhead contact line system of high～speed railway．
Research conclusions: The research shows that the Cu—Mg alloy contact wire with the 1 20 mm2 cross—section should be used in priority and its tensile force should never be less than 27 kN．The copper alloy with the 120 mm2 cross—section should be used for the messenger wire and its tensile force should be around 23 kN．The span length should be between 55 m and 60 m．The system height can be 1．4 m to 1．6 m．The tensile force of stitch wire should be less than 3．5 kN．The length of stitch wire varies from 1 6 m to 1 8 m．The distance between the suspension point and the 1 st dropper should be around 4．5 m．There should be no gradient on the contact wire．The catenary irregularity of the wave length equal to 2～6 times of dropper spacing should not appear as much as possible.
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