1.Diagnosis ＆Self-Recovery Engineering Research Center, Beijing University of Chemical Technology, Beijing 100029, China;2. Department of Chemical Machinery, Beijing Institute of Petrochemical Technology, Beijing 102617, China
Abstract：By studying the fatigue life of a drilling pump valve, a further elucidation was made on the main failure mechanism of the valve. With the software ANSYS/LS—DYNA, a 3D solid model was built, which simulated the process when the valve disc was impacting the seat and developed the stress contour map of the disc. According to the simulative result, the impact of pulsating stress on the fatigue damage of the drilling pump valve was analyzed, which focused on the harm that stress concentration may accelerate the valve failure when under the alternating load, improving the non-impact theory. Finally, the service life of the valve was estimated based on the fatigue life curve and an improvement of the valve structure was also presented which can effectively alleviate the stress concentration and extend the service life.
杨国安;乔舰;宋征;戴静君. 钻井泵阀寿命分析[J]. , 2010, 29(1): 58-61.
YANG Guo-an;QIAO Jian;SONG Zheng;DAI Jing-jun. THE SERVICE LIFE ANALYSIS OF DRILLING PUMP VALVE. , 2010, 29(1): 58-61.
2010, Vol. 29 
