通过大量的实验数据 ,对三牙轮钻头在井底振动时干扰力的幅值和频率进行了全面而细致的分析 ,摸索出了其在井底的振动规律 ,提高了井下钻具动力学分析的准确度 ,可在一定程度上减少钻具失效、节约钻井成本 Through a large amount of experimental data, the amplitude and frequency of the interference force of the tricone bit during the bottom hole vibration were analyzed comprehensively and carefully, and the vibration law of the bottom hole was explored and the dynamic analysis of the downhole drilling tool was improved Accuracy, to a certain extent reduce the drill failure, saving drilling costs