CAJ | 학술논문

泥浆立管在工作时会产生较大振动，分析了引起振动的主要原因。采用有限元方法计算了立管系统的固有频率，并使用CFD方法分析了泥浆自身脉动激励现象。通过对比计算，确定了大涡湍流模拟方法适用于流体脉动现象仿真。计算结果表明：泥浆自身脉动激励不是立管振动的主要因素，同时提出了有效遏制立管振动的方法和建议。
니장립관재공작시회산생교대진동，분석료인기진동적주요원인。채용유한원방법계산료립관계통적고유빈솔，병사용CFD방법분석료니장자신맥동격려현상。통과대비계산，학정료대와단류모의방법괄용우류체맥동현상방진。계산결과표명：니장자신맥동격려불시립관진동적주요인소，동시제출료유효알제립관진동적방법화건의。
The standpipe in work will cause vibration.The main causes of vibration were analyzed. Natural frequency of the riser system was calculated using finite element method.The CFD meth-od was used to analyze the phenomenon of mud pulse excitation.By comparing the calculated re-sults,the large eddy simulation of turbulent flow method was applied to the fluid pulsation simu-lation.The calculation results show that the main factor of vibration of the standpipe is not the mud pulse excitation.At the same time,the methods and suggestions are put forward to effective-ly curb vibration of standpipe.