多区域空气分配系统有一个中央风扇和多个空气阀或空气流量控制终端。每个终端机械地限制本地空气路径，以调节通过终端的空气流量。流量控制器动态调整每个终端的限制，以调节相应的流量。阻尼器的每次调整都会改变通过该终端的流量，但也会改变通过系统中其他终端的流量。通过任何终端的气流在很大程度上取决于相应挡板的位置，在较小程度上取决于系统中所有其他挡板的位置。 一个减振器设置与流经其他端子的流量之间的耦合程度取决于许多机械量。建立了一个数学模型来表示整个空气分配系统中的气流和压力损失。该模型将风机、风管和风门描述为一个非线性、多输入、多输出系统。该模型能够描述所选阻尼器对通过任何终端的流量的影响。在选定的工作点进行分析，可以比较不同阻尼器对一个流量的影响，并比较不同工作点的耦合程度。 探讨了各种机械操作参数对阻尼器与流体耦合的影响。重点研究了管道压力对联轴器的影响。具体而言，该分析表明了风管压力重置对气流控制性能的影响。它与排气系统和供气系统有关。引用:ASHRAE论文:2015年ASHRAE年会，佐治亚州亚特兰大

A multi-zone air distribution system has a central fan and multiple air valves, or air flow control terminals. Each terminal mechanically restricts the local air path to regulate the air flow through the terminal. Flow controllers dynamically adjust the restriction in each terminal to regulate the corresponding flow. Each adjustment of a damper changes the flow through that terminal, but also changes the flow through every other terminal in the system. Air flow through any terminal depends strongly on the position of the corresponding damper and depends to a lesser extent on the positions of all the other dampers in the system. The degree of coupling between one damper setting and the flows through the other terminals depends on many mechanical quantities. A mathematical model is developed to represent air flows and pressure losses throughout an air distribution system. The model describes the fan, ducts and dampers as a non-linear, multi-input, multi-output system. This model enables describing the influence of a selected damper on the flow through any terminal. Analyzing at selected operating points makes it possible to compare the effects of different dampers on one flow, and to compare the magnitude of coupling at different operating points. The effect of various mechanical operating parameters on the coupling between dampers and flows is explored. The effect of the duct pressure on the coupling is especially investigated. In concrete terms, this analysis indicates the effect of duct pressure reset on air flow control performance. It pertains to exhaust systems as well as supply.