Engineering tools for fatigue response due to pressure pulsation

泵和压缩机产生的压力脉动会给管道系统带来周期性的内部载荷，从而产生管道位移。严重的管道振动可能会累积，从而可能导致疲劳失效。压力脉冲在管网中的产生、传播和结构响应是非线性的、三维的。该项目的目的将是确定、评估和设计用于实际复杂管道结构的结构响应的最佳可用工具。目标是针对相同的测试用例分析和比较所有可用的模型，并应用最实用的建模技术并与已公布的实验数据集进行比较。这项工作的最终结果将是一套用于脉动服务中管道系统疲劳分析的工程工具。

Pressure pulsation generated by pumps and compressors introduces periodic internal loading on piping systems that can generate pipe displacement. Significant pipe vibrations can build up which may lead to fatigue failure. The pressure pulse generation, propagation and structural response from the piping network are non-linear and 3D. The aim of this project will be to determine, assess and devise the best available tools for the structural response of a real complex piping structure. The objectives are to analyze and compare all available models against the same test case and apply the best practical modeling technique and compare with published experimental data sets. The final outcome of the work will be a set of engineering tools for fatigue analysis of piping systems in pulsation service.