CAJ | 학술논문

基于外加载荷源的机械冲击对接触网覆冰的影响，建立简单链形悬挂接触网的静力学模型，并在此基础上得到接触网－覆冰模型。对接触网－覆冰模型进行动力学分析，通过模态、谐响应、瞬时动力响应分析得到覆冰时的接触网固有频率；最佳除冰载荷频率范围应远大于1．5 Hz；并通过改变外加载荷方式确定最佳除冰载荷方式。将方法推广于一般覆冰条件，结合不同载荷作用点、载荷频率、载荷增加方式等综合分析，使除冰效果最佳。
기우외가재하원적궤계충격대접촉망복빙적영향，건립간단련형현괘접촉망적정역학모형，병재차기출상득도접촉망－복빙모형。대접촉망－복빙모형진행동역학분석，통과모태、해향응、순시동력향응분석득도복빙시적접촉망고유빈솔；최가제빙재하빈솔범위응원대우1．5 Hz；병통과개변외가재하방식학정최가제빙재하방식。장방법추엄우일반복빙조건，결합불동재하작용점、재하빈솔、재하증가방식등종합분석，사제빙효과최가。
The influence of mechanical impact of extra loading source on catenary was researched in this paper. At first,the static model of catenary simple chain suspension was built,based on which the catenary icing model was obtained.Then dynamics analysis was carried out for the model,and the inherent frequency of catenary un-der icing condition was calculated though modal analysis,harmonic response analysis and transient dynamics a-nalysis.Best loading frequency scope of de -icing was supposed to be much higher than 1.5 kHz.The best loading method was obtained by changing the way the loading increases.Finally,the method was applied to ob-taining the best de -icing solution under general icing conditions by comprehensively considering different load-ing points,the frequency of loading and the way the loading increases.