| 井架可靠性设计中抗力的确定 |
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| 引用本文： | 裴峻峰,陈荣振,等.井架可靠性设计中抗力的确定[J].石油机械,1995,23(12):4-7. |
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| 作者姓名： | 裴峻峰 陈荣振 |
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| 作者单位： | 石油勘探院机械所，宝鸡石油机械厂，石油大学 |
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| 摘 要： | 在大量调研统计的基础上，运用结构可靠性理论，求得了ＪＪ２５０／４２－Ｋ型井架抗力的概率分布类型及抗力系数。井架构件的抗力服从于对数正态分布，抗力均值ｍＲ＝ｋＲＲｋ。井架常用钢材为１６Ｍｎ和Ａ３，其抗力系数ｋＲ和Ｒｋ可由资料查得。对１６Ｍｎ和Ａ３以外的钢材，根据概率统计法，对影响抗力的３个主要因素──材料强度、截面几何特性和计算模式，分别确定各自的均值与标准差，然后求得抗力系数和抗力变异系数。
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| 关 键 词： | 井架，可靠性，抗力，概率，分布 |
Determination of resistance in reliability design of derrick |
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| Pei Junfeng,Chen Rongzhen,Zhang Bowen,et al..Determination of resistance in reliability design of derrick[J].China Petroleum Machinery,1995,23(12):4-7. |
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| Authors: | Pei Junfeng Chen Rongzhen Zhang Bowen |
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| Abstract: | The type of probability distribution and the resistance coefficient of Model JJ250/42-K derrick are worked out by using the structural reliability theory.The resistance of the component parts of the derrick is subject to the logarithmic normal distribution,the mean value of the resistance MR equals kRR4.The steel for derrick in common use is 16Mn or A3.Their resistance coefficient kR and resistance standard value Rk can be obtained froom the relevant references. |
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| Keywords: | derrick reliability resistance probability distribution |
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