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首页> 外文期刊>Journal of Optimization in Industrial Engineering >Multi-response Optimization of Grooved Circular Tubes Filled with Polyurethane Foam as Energy Absorber
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Multi-response Optimization of Grooved Circular Tubes Filled with Polyurethane Foam as Energy Absorber

机译：填充聚氨酯泡沫作为能量吸收剂的带槽圆管的多响应优化

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The main objective of this research is to improvethe design and performance of the polyurethane foam-filled thin-walled aluminum grooved circular tubes using multi-response optimization (MRO) technique. The tubes are shaped with the inner and the outer circular grooves at different positions along the axis. For this aim, several numerical simulations using ABAQUS finite element explicit code are performed to study the energy absorption of these structures. The effects of the grooves distance, tube diameter, grooves depth, foam density, and tube thickness are investigated onthecrashworthiness parameters of grooved circular tubes. Finite-element analysis is performed along the lines defined by design of experiments (DOE) technique at different combinations of the design parameters. The MRO is carried out using the mathematical models obtained from response surface methodology (RSM) for two crashworthiness parameters termed as the specific energy absorption (SEA) and the crushing force efficiency (CFE). Finally, by analyzing all the design criteria including theabsorbed energy of tube, themass of tube, the mean crushing load, and the maximum crushing load, the optimal density of polyurethane foam and geometric parameters were obtained through both multi-objective optimization process and Pareto diagram. A comparison of the obtained results indicates the significance of grooves distance and the inner diameter of thetube as the most influential parameters.
机译：这项研究的主要目的是使用多响应优化（MRO）技术来改善聚氨酯泡沫填充薄壁铝槽圆管的设计和性能。管的形状是沿轴向在不同位置的内部和外部圆形凹槽。为此，使用ABAQUS有限元显式代码进行了一些数值模拟，以研究这些结构的能量吸收。研究了沟槽距离，管直径，沟槽深度，泡沫密度和管厚度对带槽圆形管的耐撞性参数的影响。有限元分析是按照实验设计（DOE）技术在不同设计参数组合下定义的路线进行的。使用从响应面方法（RSM）获得的数学模型对两个防撞参数（称为比能量吸收（SEA）和压碎力效率（CFE））进行MRO。最后，通过分析所有设计标准，包括管的吸收能量，管的质量，平均破碎负荷和最大破碎负荷，通过多目标优化过程和帕累托图获得了聚氨酯泡沫的最佳密度和几何参数。 。所得结果的比较表明，凹槽距离和管的内径作为最有影响力的参数的重要性。

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