CAJ | 학술논문

FOA算法是2011年提出的新型演化式全局优化智能算法，该算法计算原理简单，程序代码易实现，且具有收敛速度快、鲁棒性强、计算精度高等优点，但也存在全局收敛困难等缺陷。基于此，文中提出在FOA算法中引入具有更强全局性的Metropolis准则，以此来提高算法的全局收敛性能，改善算法求解实际问题的能力，并在此基础上为算法增加了自适应步长搜索的功能，提高了算法的收敛速度。采用数值算例对改进前后的算法进行仿真，测试结果证明了算法的先进性，将改进后的算法运用通用桥式起重机金属结构的优化设计中，优化计算的结果同样证明了算法高效的计算能力及广阔的工程应用前景。
FOA산법시2011년제출적신형연화식전국우화지능산법，해산법계산원리간단，정서대마역실현，차구유수렴속도쾌、로봉성강、계산정도고등우점，단야존재전국수렴곤난등결함。기우차，문중제출재FOA산법중인입구유경강전국성적Metropolis준칙，이차래제고산법적전국수렴성능，개선산법구해실제문제적능력，병재차기출상위산법증가료자괄응보장수색적공능，제고료산법적수렴속도。채용수치산례대개진전후적산법진행방진，측시결과증명료산법적선진성，장개진후적산법운용통용교식기중궤금속결구적우화설계중，우화계산적결과동양증명료산법고효적계산능력급엄활적공정응용전경。
FOA algorithm is the full-scale optimal intelligent algorithm put forward in 2011, with the advantages of simple calculation principle , realizable program code , rapid rate of convergence , strong robustness , high calculation preci-sion, etc., as well as disadvantage of difficult global convergence , and so on.In this case, the paper puts forward Metrop-olis criterion with strong globalization introduced in FOA algorithm , which is used to improve the global convergence per-formance of the algorithm and its capability of solving practical problems .Based on this , the self-adaption step-length search function is added to the algorithm , to improve the convergence speed .The numerical case is used to simulate the al-gorithms before and after improvement .The test result verifies advancement of the algorithm .After the improved algorithm is applied to optimal design of metal structure of the general bridge crane , the result shows high-efficient calculation capaci-ty of the algorithm and its broad engineering application prospect .