摘要
根据数理统计推断理论,通过成组对比疲劳破坏试验,用t检验法判断检验具有一定弯曲度的抽油杆试件与直试件是否来自平均值相同的母体。提出抽油杆弯曲度的检验标准。
Based on mathematical statistical methods and group contrast fatigue test data, by
using t-test method, sucker bar samples which were bent within a certain rate, and
straight sucker bar samples were inspected to determine if they came from the parent
populations which have an equal mean value. A check criterion for bending rate of suck-
er bars is presented.
出处
《大庆石油学院学报》
CAS
北大核心
1992年第2期37-41,共5页
Journal of Daqing Petroleum Institute
关键词
检验标准
抽油杆
弯曲度
group contrast test
sample variance
parent population mean value
fiducial interval
freedom
