The influence of switching off branch on system nodal voltages and line loads is analyzed and the concept of security margin and its calculation formula are given.
分析了支路断开对系统节点电压及线路负荷的影响，给出安全裕度概念和计算公式。
According to internal force influence line theorem author advance the standard calculation method of rigid frame influence line by using programme.
根据结构内力影响线定理提出了一个用程序计算刚架影响线的通用算法。
The influence of line load width on the results of theoretical solution is studied by the way of finite element calculation of cylindrical shell under line loads with different acting width.
通过对多种载荷作用宽度的线压作用下的圆柱壳的有限元应力计算，研究线压作用宽度对理论解的影响。
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