CAJ | 학술논문

以通用桥式起重机箱形主梁金属结构为研究对象，针对现阶段桥式起重机金属结构在优化方法方面存在的易陷入局部最优、搜索时间较长等问题，在研究果蝇算法及传统优化算法搜索方式的基础上，将果蝇算法进行了适当的改进，利用果蝇算法高效的全局寻优能力，并结合传统优化算法的稳定性，提出了一种新的具有较高搜索效率的优化方法，将该方法运用到50 t/20 m双梁桥式起重机主梁金属结构轻量化设计之中。计算结果表明，该方法可以加速优化算法的收敛速度，具有良好的优化性能，证明了文中所提方法适合进行起重机金属结构轻量化设计，为起重机金属结构的轻量化研究提供了一种新的高效的设计手段。
이통용교식기중궤상형주량금속결구위연구대상，침대현계단교식기중궤금속결구재우화방법방면존재적역함입국부최우、수색시간교장등문제，재연구과승산법급전통우화산법수색방식적기출상，장과승산법진행료괄당적개진，이용과승산법고효적전국심우능력，병결합전통우화산법적은정성，제출료일충신적구유교고수색효솔적우화방법，장해방법운용도50 t/20 m쌍량교식기중궤주량금속결구경양화설계지중。계산결과표명，해방법가이가속우화산법적수렴속도，구유량호적우화성능，증명료문중소제방법괄합진행기중궤금속결구경양화설계，위기중궤금속결구적경양화연구제공료일충신적고효적설계수단。
With the metal structure of box girder of the common bridge crane as a study object,in terms of the prob-lems of the optimal method for the metal structure of the bridge crane such as local optimization and long search time,the fruit fly algorithm is properly improved based on the research on the fruit fly algorithm and traditional optimal algo-rithm.With the aid of the high-efficient global search capacity of the fruit fly algorithm,and considering stability of tradi-tional optimal algorithm,a new optimization method with high search efficiency is put forward in the paper,which is applied to the light-weight design of the metal structure of the girder for 50 t/20 m double-girder bridge cranes.The calculation re-sult shows that the method can accelerate the convergence rate of the optimal algorithm,provided with excellent optimization performance,so it's verified that the above-mentioned method is applicable to the light-weight design of the crane metal structure,providing a new high-efficient design means for light-weight research for the crane's metal structure.