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；

This article introduce the applied method of cold extrusion in manufacture beam unit's driving cord.

着重介绍了冷挤压技术在制造抽油机驱动绳中的应用方法.