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用弹性力学方法分析了复合载荷条件下钻探设备关键部件——钻杆的应力和应变关系，提出了各载荷测量信号的采集方案，为钻具的载荷监控奠定了基础。
The relationship between stress and strain of the drill pipe, which is the key component of the drilling equipment under composite loading, was analyzed by using elastic mechanics. The acquisition scheme of each load measuring signal was put forward, which laid the foundation for the load monitoring of the drilling tool.