Research on the Reliability Growth of Closed Blots for Automobile Diesel Engine Body

doi:10.3969/j.issn.1000-1093.2017.03.003

Abstract

Abstract: For the reliability of closed blots for automobile diesel engine body, the failure mode and its failure mechanism of closed blot is studied. A test equipment of closed blots is designed. The vibration experiment is done for closed blot for diesel engine body, and the fault recovery of closed blot with the fatigue mode is completed. The measures for improving the reliability of closed blots are studied. The improved closed blot is assembled on the diesel engine body, and its reliability is validated through application. The result shows that the failure mode of closed blot for diesel engine body is a vibration fatigue, and the resonance is the reason for the failure of closed blot. After the measures for improving the reliability are adopted, the vibration frequency of closed blot is improved obviously, and it can avoid the resonance effectively. Key

Key words: powermachineryengineering, automobiledieselengine, closedblot, vibrationfatigue, reliabilitygrowth, failuremechanism

CLC Number:

TK422

WANG Zeng-quan, WANG Zheng, LAN Yin-zai, CHEN Ze-zhong, HOU Xin-rong. Research on the Reliability Growth of Closed Blots for Automobile Diesel Engine Body[J]. Acta Armamentarii, 2017, 38(3): 433-439.

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第38卷
第3期2017 年3月兵工学报ACTA
ARMAMENTARIIVol.38No.3Mar.2017

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