石油学报 ›› 1995, Vol. 16 ›› Issue (2): 117-124.DOI: 10.7623/syxb199502017

• 石油工程 • 上一篇    下一篇

抽油杆材料断裂韧度及机械性能的可靠性分析

王国丽, 李其, 魏嘉荃, 钟伯明, 秦红   

  1. 大庆石油学院
  • 收稿日期:1993-03-10 修回日期:1993-12-07 出版日期:1995-04-25 发布日期:2013-07-06
  • 作者简介:国丽,1985年毕业于大庆石油学院,获硕士学位.现任大庆石油学院机械系副仁任、副教授.通讯处:黑龙江省安达市.邮政编码:151400.

THE RELIABILITY ANAL YSES OF FRACTURE TOUGHNESS AND MECHANICAL PROPERTIES OF SUCKER ROD

Wang Guoli, Li Qi, Wei Jiaquan, Zhong Boming, Qin Hong   

  1. Daqing Petroleum Institute
  • Received:1993-03-10 Revised:1993-12-07 Online:1995-04-25 Published:2013-07-06

摘要: 对抽油杆材料35Mn2钢的机械性能和断裂韧度进行了大量的实验研究,并进行了可靠性分析.认为σsb,Ψ,δ均服从正态分布.对各参数进行了点估计和区间估计.为对抽油杆各部位、各种缺陷进行可靠性评定提供了依据.

关键词: 抽油杆, 断裂韧度, 机械性能, 正态分布, 可靠性

Abstract: A large number of investigation on fracture toughness andon mechanical properties forsucker rod of 35 Mn2 steel,and the reliability analyses have been made this paper.It is verified that the distribution of all parameters:σsb,Ψ,δ and K1c is normal. We have also determined the point estimation and the region estimation of parametsrs for every distribution.This study provided the evidence for reliability assessment of parts and defects of sucker rod.

Key words: sucker rod, fracture toughness, mechanical properties, normal distribution, rehability