摘要
回顾了钢材的Ｐ—Ｓ—Ｎ曲线。由于工程上一般给出的Ｓ—Ｎ曲线是指存活率Ｒ＝５０％时的疲劳曲线，它不能保证抽油杆使用的可靠性。为此，提出将可靠性方法引入抽油杆组合设计中。
Abstract This paper reviewed P S N curve of steel. Because S N curve general given is fatigue curve of effective pro bability R=50 %,working reliability of sucker rod is not ensure. ln order to improve rate of utilization sucker rod, reliability theory must be led into the design of fiberglass steel sucker rod string.
出处
《石油矿场机械》
1998年第6期41-43,共3页
Oil Field Equipment
