train wheel bridge 中文意思是什麼
train wheel bridge
解釋
上夾板-
Abstract : a mechanical model to analyze the dynamic performance of train and transition section between roadbed and railway bridge was established a nd a series of reasonable criterions were put forward too. based on this, the init ial deformation of rails due to different subsidence of roadbed and bridge abutm ent, the effects of the direction and speed of train on the dynamic performance o f wheel / track system were studied. at last, the method to determinate the length o f transition section was suggested
文摘:建立了列車與路橋過渡段動力特性分析模型，確定了一套軌道過渡段動力特性的評價指標，分析了由基礎沉降差引起的鋼軌初始變形以及行車方向、行車速度對輪軌系統動力性能的影響，提出了確定路橋過渡段長度的方法。 -
According to different mechanisms, there exist several types of resonance, including the bridge resonance induced by the periodical actions of moving load series of the weights, centrifugal forces and lateral winds of vehicles, the bridge resonance induced by the loading rates of moving load series of vehicles, the bridge resonance induced by the periodical loading of train vehicles excited by rail irregularities, wheel flats and hunting movements, and the vehicle resonance induced by periodical actions of the regular arrangement of bridge spans and their deflections
根據發生機理的不同，車橋系統可能發生幾種不同形式的共振，包括由車輛重量、離心力、橫向平均風荷載等形成移動荷載列的周期性動力作用引起的橋梁共振，由移動荷載列加載速率引起的橋梁共振，由軌道不平順、車輪扁疤、輪對蛇行等周期性加載引起的橋梁共振；由橋跨的規則性排列及其撓度的影響，對移動車輛形成周期性動力作用使車輛出現的共振。
分享友人