A Modified Micro Genetic Algorithm with Intergeneration Projection and Inverse Identification of Material Properties of a Printed Circuit Board
A Modified Micro Genetic Algorithm with Intergeneration Projection and Inverse Identification of Material Properties of a Printed Circuit Board
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DOI：
10.1080/1068276031000135890
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发表时间：
2003-06
期刊：
影响因子：
--
通讯作者：
Z.L. Yang;G. Liu
中科院分区：
文献类型：
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作者：
Z.L. Yang;G. Liu
引入逆过程来识别印刷电路板 (PCB) 及其上安装的组件的材料属性。本文提出了一种带有代际投影 (IP) 的改进微遗传算法 (μGA)，以加速逆向搜索过程。 PCB 在一定激励频率范围内受到强制加速，并通过计算和实验获得频率响应。 PCB 和组件上特定节点的频率响应被用作逆过程的输入。使测试结果与模拟结果之间的偏差平方和最小化的材料特性是反向确定的。本发明的逆过程可用于广泛的实际工程问题。
An inverse procedure is introduced to identify the material properties of a printed circuit board (PCB) and components mounted on it. A modified micro genetic algorithm (µGA) with intergeneration projection (IP) is presented in this article to speed up the inverse searching process. The PCB is subjected to an enforced acceleration over a range of excitation frequencies and the frequency response is obtained computationally and experimentally. The frequency response at specific nodes on PCB and components are utilized as the input for the inverse procedure. Material properties that minimise the sum of the squares of the deviations between test and simulation results are inversely determined. The present inverse procedure can be used in a wide range of practical engineering problems.