A novel analysis method is proposed to evaluate the impact of specified components in a pipe network on the severity of transient events. A new structural scheme for the impedance matrix was developed to ensure the feasibility of compartmental unsteady analyses, which can be useful for complex pipe networks with different pipeline elements. The impact of a specific pipeline element or a designated section with multiple elements on the transient response can be obtained by delineating the subtracted frequency response between a specific hydraulic impedance of the complete network and that of the missing element. A hypothetical pipe network was introduced to validate the developed method. The impacts of pipeline elements on the total transient response were perfectly matched between the subtraction of time domain responses and direct computation using the identified frequency response function. The transient relaxing impact of additional pipeline elements can be considered for the design of pipe networks.

提出了一种新的分析方法来评估管网中特定组件对瞬态事件严重性的影响。开发了一种新的阻抗矩阵结构方案，以确保分区非定常分析的可行性，这对于具有不同管道元素的复杂管网很有用。特定管道元件或具有多个元件的指定部分对瞬态响应的影响可以通过描绘完整网络的特定水力阻抗与缺失元件的特定水力阻抗之间的减去频率响应来获得。引入了一个假设的管网来验证所开发的方法。管道元件对总瞬态响应的影响在时域响应的减法和使用识别的频率响应函数的直接计算之间完美匹配。管网设计可以考虑附加管道元件的瞬态松弛影响。