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首页> 外文期刊>International journal of steel structures >Time-Dependent Reliability Analysis of Oil Derrick Structures in Mechanism Failure Mode
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Time-Dependent Reliability Analysis of Oil Derrick Structures in Mechanism Failure Mode

机译:机理故障模式下油井架结构的时间依赖性可靠性分析

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摘要

Most research studies on the reliability of oil derrick structures have focused on static reliability analysis. Strength degradation with time of oil derrick structures and mechanism failure should also be considered in reliability analysis. In order to address this issue, we propose a new time-dependent reliability analysis method for oil derrick structures in mechanism failure mode and apply it to a tower derrick structure. We used the Monte Carlo finite element method to compute the static failure probability of each derrick component, and steps were employed to determine the main failure mechanisms. The time-dependent failure probabilities of each derrick component in the main failure mechanisms were calculated by the total probability theorem. The time-dependent reliability of a derrick structure system was obtained by considering the system as a series of parallel subsystems. A tower derrick example was used to demonstrate the accuracy and applicability of the proposed method. The results revealed that the proposed method is accurate and reliable.
机译:大多数关于石油钻头结构可靠性的研究研究专注于静态可靠性分析。在可靠性分析中也应考虑随着油井粗糙结构和机理破坏的时间劣化。为了解决这一问题,我们提出了一种新的时间依赖性可靠性分析方法,用于机构故障模式下的油井架结构,并将其应用于塔式井架结构。我们使用了蒙特卡罗有限元方法来计算每个井架组件的静态失效概率,并且采用步骤来确定主故障机制。通过总概率定理计算主故障机制中每个井架组件的时间依赖性故障概率。通过将系统视为一系列并行子系统来获得井架结构系统的时间依赖性可靠性。塔式挖terrick示例用于展示所提出的方法的准确性和适用性。结果表明,该方法准确可靠。

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