摘要
要对抽油机的设计提供较为精确的理论计算依据，必须对抽油机进行弹性动力分析。为此，建立了抽油机的力学模型，导出了用有限元进行弹性动力分析的动力微分方程。考虑到抽油机低速旋转的特点，将动力微分方程简化成准静态的线性方程组，大大节省了计算时间。又因为考虑了动力效应，计算精度得以保证，计算结果更接近于实际工况。对CYJ10－3－53HB常规式抽油机进行了编程计算，可知最大应力值较低，表明目前抽油机的设计偏于保守。
To provide a basis for precise calculation of pumping Unit, it is necessary to make a elastodynamic analysis on the u-nit. Thereby a mechanical model for the unit is established, and a dynamic differential eqations for the elastodynamicanalysis hy the finite element method are derived. The equations are simplified to quasi-static linear equation set in con-sideration of the low rotary speed of the unit, thus far less calculation time is needed and accuracy of the calculation isassured. Model CYJ10-3-53HB pumping unit is calculated on computers, and the resull shows that the maximum stress islow, and this indicates that the design of present pumping units is rather conservative.
出处
《石油机械》
北大核心
1997年第6期8-10,17,共4页
China Petroleum Machinery
基金
江汉石油学院重点资助
关键词
抽油机
准静态分析
力学模型
有限元法
pumping unit elastodynamie analysis quasi-static analysis mechanical model finite element method
