基于SQP法的泵站建筑物模糊安全综合评价及界面开发

针对目前层次分析法中权值计算和判断矩阵一致性检验分开进而导致计算精度不够精确的问题,提出了基于SQP法的权值计算算法。同时针对目前泵站建筑物安全评价中评价指标数较多,计算复杂易出错的问题,基于MATLAB GUI将整个安全评价过程设计为一个可视化界面。将权值计算与判断矩阵一致性检验相结合形成一个非线性优化问题,然后利用SQP法来求解。在提出的SQP权值计算算法的基础上融合模糊综合评价模型应用MATLAB GUI将计算过程封装成一个界面。以南水北调东线某大(1)型泵站建筑物安全评价为例,在此泵站上应用SQP算法计算各指标权值。计算结果表明,此算法计算精度高、收敛速度快。将开发出的界面应用到此泵站上可简单快速完成泵站建筑物安全评价,与实际状况较为符合。研究成果可为泵站等类似建筑物的安全综合评价提供参考。

SQP method based fuzzy comprehensive safety assessment on pumping station structure and its interface development

Aiming at the problem of that the calculation precision is less accurate，which is caused by the separation of both the weight calculation in the analytic hierarchy process （AHP） and the consistency of the judgment matrix at present，a SQP method based algorithm is put forward herein. Meanwhile，for the problem of that the number of the indexes in the safety assessment of the structure of pumping station is much more，and then the calculation is complicated and errors are prone to occur，the whole safety assessment process is designed into a visualized interface on the basis of MATLAB GUI. The weight calculation is integrated with the judgment matrix consistency test，thus forms a nonlinear optimization problem，which is then solved with SQP method. The calculation process is encapsulated into an interface with MQATLAB GUI by integrating the fuzzy comprehensive assessment model together based on the proposed algorithm for the SQP weight calculation. By taking the safety assessment made on a pumping station structure of the Large I type of the East Route of the South to North Water Transfer Project as the study case，the weight values of all the indexes of the pumping station are calculated with the SQP algorithm. The calculation result shows that the precision of the algorithm is high with a fast convergence speed. The safety assessment can be simply and quickly completed through applying the developed interface to this pumping station，from which the result is more coincided with that of the actual status. The study result can provide reference for the similar structures，such as pumping station，etc.