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A procedure for validating rigid catenary models using evolutionary techniques

机译:一种使用进化技术验证刚性脉冲模型的程序

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This paper describes a method to validate rigid catenary finite element models from modal tests. The model parameters are obtained by means of an optimization process using evolutionary techniques. The validation of rigid catenary sections is a complicated process due to the large number of parameters to be tuned. Three different scenarios have been studied to reproduce the most common assemblies of real rigid catenary sections. The performance of the algorithm has been evaluated using 45 virtual models of rigid catenary assemblies with section lengths from 48 up to 480 m and span lengths ranging from 8 to 12 m. The influence of errors in the installation of the supports has also been studied. In all cases, the algorithm has demonstrated its effectiveness in providing the correct model parameters even when a singularity in some of its supports has been introduced. According to the results, the proposed method is a valid tool to validate rigid catenary mathematical models. (C) 2019 Elsevier Ltd. All rights reserved.
机译:本文介绍了一种从模态测试中验证刚性链状有限元模型的方法。通过使用进化技术的优化过程获得模型参数。由于要调整的大量参数,刚性脉冲部分的验证是一种复杂的过程。已经研究了三种不同的场景,以重现真正的刚性凸面部分的最常见的组件。已经使用45个虚拟凸起的组件的虚拟型号评估了算法的性能,其中截面长度高达480米,跨度长度范围为8至12米。还研究了错误在安装支撑件中的影响。在所有情况下,即使已经引入了一些支持的奇点,算法也证明了其在提供正确的模型参数方面的有效性。根据结果​​,所提出的方法是验证刚性关联数学模型的有效工具。 (c)2019 Elsevier Ltd.保留所有权利。

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