TY -的A2 Nascimbene罗伯托•王盟- Chong AU - Li Xufeng AU - Li Yafeng盟——徐朱文昊盟——廖,武夷PY - 2021 DA - 2021/02/23 TI -旋转钻疲劳的影响分析SP - 6666767六世- 2021 AB -有很多种振动形式的钻在石油钻探。旋转时的一个主要振动模式钻井钻探工具,也是钻的疲劳失效的主要原因。在本文中,钻旋转的原因进行了分析。结果表明,旋转的速度(RPM)是一个主要因素影响的严重性旋转。旋转速度越大,旋转的更强烈。钻的旋转会产生弯曲应力。钻的旋转的严重程度是影响弯曲应力的主要因素。转速和钻压的增加(钻压)将导致弯曲应力的增加。RPM在弯曲应力有很大的影响。鉴于钻的复杂应力状态,建立了安全系数的计算模型。 The bending stress and safety factor are calculated under the different WOB and RPM. The relationship between dynamic bending stress and the safety factor of drilling tools is analyzed. Bending stress has great influence on the safety factor of drillstring. The variation trend of safety factor is opposite to that of bending stress caused by whirl. It provides a theoretical reference for the optimization of drilling tools in drilling engineering construction. SN - 1070-9622 UR - https://doi.org/10.1155/2021/6666767 DO - 10.1155/2021/6666767 JF - Shock and Vibration PB - Hindawi KW - ER -