高层建筑结构测点优化布置方法的研究

Study on optimal sensor locations for measurements of high-rise building

对高层建筑结构测点优化布置方法进行了研究,综合采用有效独立法和遗传算法进行了测点的优化布置。首先,采用有效独立法进行测点初步筛选,得到候选测点群;其次,利用遗传算法以基于振型相似度的适应度函数进行测点方案确定,并通过实际某高层结构模态测试的测点优化实例说明了具体的方法;然后,将方法得出的计算结果与单独利用有效独立法的计算结果进行对比,并对不同测点数的布点方案进行计算,结果表明:算法能在较少的遗传代数内得到优良的测点布置结果,有效的提高了优化布置测点的效率。

The methods of the optimal sensor location are studied. Effective independence algorithm and the genetic algorithm are adopted as a hybrid algorithm to arrange the optimization of locations of sensor. Firstly, the article a- dopted the effective independent method to narrow down the search scope by selecting the alternative locations. Sec- ondly, improved the adaptive genetic algorithm and used similarity of mode shapes as a fitness function to do the further selection of the sensor locations. Moreover, explained the specific method with the optimal sensor locations examples Of high-rise building. Thirdly, compare the hybrid algorithm calculation with the effective independent method calculation. And calculates different arrangement of locations of sensor. The result shows that the good set of optimal sensor locations could be obtained by the algorithm in this article which is more effective.