CAJ | 학술논문

针对地震作用下空间网壳结构的受力和变形特点，以超磁致伸缩材料为核心元件研发了适合于空间网壳结构主动控制的超磁致伸缩主动杆件，并对其进行了磁－力耦合性能测试。基于遗传算法这一先进的优化方法，对空间网壳结构中超磁致伸缩主动杆件的布置位置进行了优化设计，并通过典型算例数值模拟及一个层网壳模型结构的振动台试验进行了优化控制效果的验证与分析。结果表明，超磁致伸缩主动杆件具有良好的作动效应，提出的优化控制方法能够较好地提高空间结构主动控制的效率，表明文中研发的超磁致伸缩主动杆件及提出的优化控制方法是有效的，能够高效、经济的实现对结构进行主动控制的目的。
침대지진작용하공간망각결구적수력화변형특점，이초자치신축재료위핵심원건연발료괄합우공간망각결구주동공제적초자치신축주동간건，병대기진행료자－력우합성능측시。기우유전산법저일선진적우화방법，대공간망각결구중초자치신축주동간건적포치위치진행료우화설계，병통과전형산례수치모의급일개층망각모형결구적진동태시험진행료우화공제효과적험증여분석。결과표명，초자치신축주동간건구유량호적작동효응，제출적우화공제방법능구교호지제고공간결구주동공제적효솔，표명문중연발적초자치신축주동간건급제출적우화공제방법시유효적，능구고효、경제적실현대결구진행주동공제적목적。
In consideration of the stress and deformation characteristics of a spatial latticed structure under earthquakes,giant magnetostrictive material (GMM)was adopted as the main component to design a kind of new GMM active rod for active vibration control of the spatial latticed structure,and its output performance test was carried out.The genetic algorithm was used to optimize the location of GMM active rods in the spatial latticed structure,and the optimization results were analyzed and confirmed by the numerical simulation of a typical example and the earthquake simulation shaking table test of a Kiewit shell model structure.The result shows that the GMMactive rod has fine actuation effect and the optimal control method proposed can improve the efficiency of spatial structure active vibration control.It also shows that the GMMactive rods with the optimal control method are effective,and the active control of the structure can achieve higher efficiency and better economy.