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On the basis of the solution expression, we deduce the composite beam unit stiffness matrix of the dual effects of the displacement.
在解析表达式的基础上推导考虑双重效应的组合梁单元刚度矩阵。
A new concept on the displacement operator for beam unit is established, and a method of calculating the deflection Angle of beam unit is then provided.
本文建立了一个梁单元位移算子的新概念，并提供一种梁平面弯曲变形的梁单元位移算子求变形的计算方法。
Through in-situ measurements in an oil field. the working conditions of beam unit motor were analyzed to discuss several methods of electric energy saving.
通过在油田的实地测量，对所得到的抽油机工况进行了分析；讨论了抽油机电气节能的几种方法；
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