| 腐蚀管道剩余寿命及参数灵敏度分析 |
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| 引用本文： | 支希哲,周红,何洁.腐蚀管道剩余寿命及参数灵敏度分析[J].西北工业大学学报,2011,29(6). |
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| 作者姓名： | 支希哲 周红 何洁 |
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| 作者单位： | 西北工业大学工程力学系,陕西西安,710072 |
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| 基金项目： | 陕西省教育厅科学研究计划(2010JK593); 西北工业大学研究生创业种子基金(Z2011072)资助 |
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| 摘 要： | 考虑腐蚀速率的影响,改进了计算腐蚀管道失效压力方程,建立了管道腐蚀剩余寿命预测的概率模型,采用重要抽样法对其进行模拟,并通过目标可靠度指标确定管道的剩余寿命,提出了一种新的管道腐蚀寿命预测方法,并对管道的各项参数进行灵敏度分析,讨论了这些参数变化对管道失效概率的影响,得出径向腐蚀速率为缺陷管道失效的主要因素.
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| 关 键 词： | 腐蚀管道 重要抽样法 参数灵敏度 可靠性 剩余寿命预测 |
Analyzing Remaining Life and Parameter Sensitivity for Pipeline Subjected to Corrosion |
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| Zhi Xizhe
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Zhou Hong
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He Jie.Analyzing Remaining Life and Parameter Sensitivity for Pipeline Subjected to Corrosion[J].Journal of Northwestern Polytechnical University,2011,29(6). |
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| Authors: | Zhi Xizhe Zhou Hong He Jie |
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| Abstract: | Section 1 establishes a probabilistic model for predicting the remaining life of pipeline subjected to corrosion based on failure function.Subsections 1.1,1.2,1.3,and 1.4 are respectively entitled: Method for Evaluating Reliability of Pipeline Subjected to Corrosion(1.1),Selection of Variables and Stochastic Variables(1.2),Importance Sampling Method for Analyzing Reliability of Pipeline Subjected to Corrosion(1.3),Sensitivity Analysis of Parameters(1.4).The core of section 1 consists of: The importance samp... |
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| Keywords: | analysis calculations corrosion failure analysis functions models Monte Carlo methods numerical methods pipe reliability sampling sensitivity analysis simulation importance sampling method remaining life prediction |
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