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为分析卷烟吸阻稳定性的影响因素及规律,基于线性网络模型方法,建立了卷烟吸阻标准偏差的计算模型,通过该模型可以获得卷烟各部分稳定性对整体吸阻稳定性的贡献.通过4种不同圆周的卷烟样品对模型进行验证,对比实验结果与计算结果的差异.结果表明:①基于线性网络模型的吸阻标准偏差计算模型具有较高的准确性,可以用于评价卷烟吸阻的稳定性.②造成吸阻不稳定的因素主要集中在滤嘴通风段,提高滤嘴通风的均匀性或减小通风均可提高烟支吸阻的稳定性.③随着滤嘴通风孔部分标准偏差的降低,烟支整体标准偏差明显降低.随着滤嘴通风率的减小,卷烟总吸阻呈现出增加趋势,而卷烟整体的标准偏差呈现出下降趋势,因此对滤嘴通风段进行改善可提高吸阻的稳定性.“,”To effectively detect and evaluate the factors and their contributions to the draw resistance consistency of cigarettes, a mathematical model for the standard deviation of draw resistance was established on the basis of linear network model. The contributions of draw resistance consistencies from different cigarette sections to the total draw resistance consistency were obtained via the established model. Cigarette samples of four circumferences were used to verify the model, and the experimental data were compared with the calculated data. The results showed that: 1) The standard deviation model based on the linear network model featured a higher accuracy and could be used to evaluate the draw resistance consistency for cigarettes. 2) The key factors causing the fluctuation of draw resistance were mainly around ventilation section of filter. Increasing the filter ventilation uniformity or decreasing the filter ventilation rate promoted the draw resistance consistency. 3) With the decrease of standard deviation of draw resistance in filter ventilation section, the standard deviation of draw resistance of a whole cigarette reduced significantly. With the decrease of filter ventilation rate, the draw resistance of the whole cigarette increased, while its standard deviation decreased. Therefore, improving filter ventilation section promotes the draw resistance consistency of cigarettes.