The concept of nominal virtual height is introduced to analyze the influence of the cracks over the structural rigidity, and a comparative analysis of the influence of the two corrosion modes over the structural rigidity is also made. 同时引入名义有效高度的概念来分析裂缝对结构刚度的影响,并对两种腐蚀模式对结构刚度的影响进行了比较分析。
As long as the nominal traction height is same as the optimum traction height, approximate optimum rate of adhesion usage can be reached for the locomotive with single traction rod. 采用单牵引杆,其名义牵引高与等效牵引高不相同,但只要名义牵引高达到最佳牵引高,机车的粘着利用率就接近最佳值。
The conception of nominal virtual height is brought forward to analyze the influence of cracks. And the relations between rigidity and service-time are built. 同时提出了名义有效高度的概念并运用线性回归方法,得出结构刚度随时间变化的关系,然后运用蒙特卡罗方法对既有钢筋混凝土梁桥的使用寿命进行预测分析。
The load transfer of B0 + B0-B0 + B0 locomotive with different traction schemes was calculated, basing on the definition of nominal and transitional and equivalent traction height. 针对B0+B0-B0+B0轴式八轴机车不同的牵引方案,在定义了名义牵引高、过渡牵引高和等效牵引高的基础上,进行了轴重转移的计算分析。
Two upflow filter beds were cascaded and were packed with polystyrene foaming pellet with nominal diameter of 3-4 mm, the bed height was 2 m. 将两个上流式滤柱串联,其中填充以3~4mm的聚苯乙烯发泡粒子,床层高度为2m。