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利用振动分析方法对抽油机井故障进行诊断．首先将原函数（原函数可以是悬点载荷对间函数、悬点加速度－时间函数、悬点载荷－悬点泣移等函数）作离散化和必要的预处理后，对其进行幅值域、时域和频域分析，从中找出敏感特征函数作为判别故障的依据．本文通过对悬点载荷－悬点位移（即示功图）的振动为示例进行了分析，给出了寻求故障特征值的振动分析方法，又通过对不同故障示功图的三域分析，得出了一些初步的结论，为抽油机井故障诊断开辟了一个新的途径，为下一步大型数据库的建立打下了基础．
Using vibration analysis method to diagnose the fault of pumping well. Firstly, the original function (the original function can be a function of the load-to-load inter-pair function, the acceleration-time function of the suspension point, the function of the load of the suspension point, etc.) is discretized and necessary preprocessing, , Time domain and frequency domain analysis, find out the sensitive characteristic function as the basis to judge the fault. In this paper, we analyze the vibration of the load-suspension point displacement (ie, dynamometer), and give the vibration analysis method to find the eigenvalues of the fault. By analyzing the three fields of the different failure indication diagrams, Some preliminary conclusions are drawn, which opens up a new way for fault diagnosis of pumping wells and paves the way for the establishment of large-scale databases in the next step.