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首页> 外文期刊>Journal of Mechanical Science and Technology >Optimization of fire-related properties in layered structures
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Optimization of fire-related properties in layered structures

机译：分层结构中的火灾相关性能优化

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摘要

In present paper, fire-related properties of materials with multilayered structure are obtained through reverse heat transfer analysis. For this purpose, one-dimensional heat transfer equation including pyrolysis is analyzed to simulate the fire phenomenon of multi-layered solid materials. The fire-related properties can be obtained by optimizing the objective function expressing the difference between the measured values and the results (surface temperature and mass loss rate under constant incident heat flux) obtained by analyzing the considered heat transfer equations. Repulsive particle swarm optimization is used as the optimization technique. The optimized properties of single-, two- and three-layered materials obtained with the assumed properties were compared to the assumed for various incident heat fluxes. Using a cone calorimeter, the surface temperature and mass loss rate were measured over time with three constant heat fluxes applied to three layers of sandwich type material. The fire-related properties of each layer of the sandwich type material were calculated using the measured results. The technique considered in this study can be applied for determining the fire characteristics of multilayered materials is suitable for engineering the necessary properties to predict fire propagation in solid material.
机译：本文通过反向传热分析，获得了具有多层结构的材料的与燃烧材料的火灾相关性。为此目的，分析包括热解的一维传热方程，以模拟多层固体材料的火现象。通过优化通过分析所考虑的传热方程获得的测量值与结果（在恒定入射热通量下的表面温度和质量损失率下的结果（表面温度和质量损失率）来获得火灾相关性能。排斥粒子群优化用作优化技术。将使用假定性质获得的单个，两叠层和三层材料的优化性能与用于各种入射热通量的假设进行比较。使用锥形量热计，随着时间的推移，用三个恒定的热通量测量表面温度和质量损失率，施加到三层三明治型材料。使用测量的结果计算每层夹层型材料的火灾相关性质。本研究中考虑的技术可以应用于确定多层材料的火灾特性适用于工程以预测固体材料以防火繁殖的必要性质。

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