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Damage assessment of truss structures from changes in natural frequencies using ant colony optimization

机译:利用蚁群优化从自然频率变化评估桁架结构的损伤

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摘要

A method is presented to detect and assess structural damages from changes in natural frequencies using ant colony optimization (ACO) algorithm. It is possible to formulate the inverse problem in terms of optimization and then to utilize a solution technique employing ACO to assess the damages of structures using natural frequencies. The study indicates the potentiality of the developed code to solve a wide range of inverse identification problems in a systematic way. The developed code is used to assess damages of truss like structures using first few natural frequencies. The outcomes of the results show that the developed method can detect and estimate the amount of damages with satisfactory precision.
机译:提出了一种利用蚁群优化(ACO)算法检测和评估自然频率变化引起的结构破坏的方法。可以根据优化公式来表达反问题,然后利用采用ACO的求解技术来利用固有频率评估结构的损伤。研究表明,开发的代码有潜力以系统的方式解决广泛的逆向识别问题。开发的代码用于使用前几个固有频率来评估桁架状结构的损坏。结果表明,所开发的方法能够以令人满意的精度检测和估计损坏的数量。

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