焊接缺陷是工业管道系统中最常见的缺陷，而管道系统中由于焊接缺陷引起的事故屡屡发生，因此管道焊接缺陷评定对于管道的安全运行具有重要意义。
As the most common flaws in industrial piping systems, weld flaws frequently lead to accidents. Therefore, assessment of piping with weld flaws is of great significance.
以A NSYS为分析工具，对铁路架桥机导梁焊接缺陷进行有限元分析，为导梁进行结构安全评定提供依据。
The finite element analysis of the bridge-erecting machine 'beam under welding defect conditions is conducted with ANSYS program, which provides a basis for the structural safety assessment of beam.
实际算例表明，该方法用于含缺陷焊接管道可靠性安全评定简单、有效、准确。
The examples show that this method is simple, efficient and accurate for reliability safety assessment of the welded pipes with cracks.
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