基于模型的含腐蚀缺陷管道爆破压力预测方法研究

IF 1.5 4区 工程技术 Q3 MECHANICS
Hongming Zhou, Peiyuan Li, Longfei Wu
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引用次数: 0

摘要

管道泄漏会对人类生存环境造成严重危害。为满足管道安全评价要求,提出了一种基于参数模型的管道爆裂压力预测方法。模型参数包括缺陷尺寸、管道尺寸和材料性能。首先,通过有限元分析研究了缺陷尺寸与破裂压力之间的关系,并根据分析结果推导了参数化模型;其次,利用改进的遗传算法得到模型的待定系数;最后,将试验爆破压力与模型预测值和三种标准评价方法进行了比较。结果表明,该预测模型比现有的管道评价规范更可靠。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research on a model-based burst pressure prediction method for pipelines with corrosion defects
The leakage of pipelines will cause serious harm to the human living environment. To meet the safety assessment requirement for pipelines, a pipeline burst pressure prediction method based on a parametric model is proposed. The parameters of the model include defect size, pipeline size and material properties. First, the relationship between the defect size and the burst pressure was studied by finite element analysis, and the parametric model was deduced according to the analysis results. Second, the undetermined coefficients of the model were obtained using the improved genetic algorithm. Last, comparisons of the test burst pressures with those predicted by the proposed model and three standard assessment methods were carried out. The results show that the predicted model is more reliable than the existing pipeline assessment codes.
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来源期刊
Journal of Mechanics
Journal of Mechanics 物理-力学
CiteScore
3.20
自引率
11.80%
发文量
20
审稿时长
6 months
期刊介绍: The objective of the Journal of Mechanics is to provide an international forum to foster exchange of ideas among mechanics communities in different parts of world. The Journal of Mechanics publishes original research in all fields of theoretical and applied mechanics. The Journal especially welcomes papers that are related to recent technological advances. The contributions, which may be analytical, experimental or numerical, should be of significance to the progress of mechanics. Papers which are merely illustrations of established principles and procedures will generally not be accepted. Reports that are of technical interest are published as short articles. Review articles are published only by invitation.
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