一种输氢管道裂纹扩展速率预测及失效评估方法及装置
By constructing a hydrogen pipeline model library and training an intelligent prediction model, and combining hydrogen-force coupling numerical simulation and failure assessment diagrams, the safety risks and high costs associated with crack propagation and failure assessment of hydrogen pipelines have been addressed, enabling rapid and accurate prediction of crack propagation rates and assessment of safety status.
CN122197741BActive Publication Date: 2026-07-17XI'AN PETROLEUM UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XI'AN PETROLEUM UNIVERSITY
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
Smart Images
Figure CN122197741B_ABST
Abstract
本申请公开了一种输氢管道裂纹扩展速率预测及失效评估方法及装置。该方法包括：获取材料属性参数与管道几何参数，经过建模与参数化配置得到包括预制裂纹的输氢管道模型库；通过氢‑力耦合数值模拟获取力学响应数据与氢浓度分布数据，基于氢浓度分布数据修正初始疲劳裂纹扩展模型，转化力学响应数据得到裂纹扩展速率数据并构建模型训练数据集；以工况参数为输入特征、裂纹扩展速率为输出标签，训练得到智能预测模型；最终输入待评估管道实时工况参数得到预测结果，经过失效评估图映射与安全边界比对，输出管道失效风险等级与安全状态评估结果。本申请可替代高压氢环境实体试验，兼顾评估精度与预测效率，为掺氢输气管道安全运维提供可靠支撑。
Need to check novelty before this filing date? Find Prior Art