基于满意度原理的自立式高耸钢结构环形TLCD控制多目标优化设计

发布时间：2018-05-07 08:03

本文选题：高耸结构 + 环形TLCD　；参考：《振动与冲击》2017年10期

【摘要】：主要针对自立式高耸钢结构振动控制的优化设计开展研究,根据自立式高耸钢结构的特点,设计了环形调谐液柱阻尼器(Tuned Liquid Column Damper,TLCD),描述了其力学模型,并进一步推导了高耸结构环形TLCD控制的动力学方程。采用Sigmoid函数和线性叠加法构建了用于自立式高耸钢结构风振控制的复合满意度函数,从而基于满意度原理,并结合模式搜索算法,建立了自立式高耸钢结构多目标优化设计方法。针对某自立式高耸钢结构的风振控制设计,以环形TLCD的几何参数为设计变量,以由顶点位移、质量比和迎风面积比组成的复合满意度为目标,编制程序开展了所建立方法的数值算例研究。研究表明,该方法能够快速有效地得到一组满足工程需要的设计参数,同时最优参数和相应设计目标对权重组合的变异系数小于0.1,因此该方法具有较高的鲁棒性,降低了多目标优化设计时权重系数选取的难度。
[Abstract]:In this paper, the optimal design of vibration control for self-supporting high-rise steel structures is studied. According to the characteristics of self-supporting high-rise steel structures, a tuned liquid column damper (tuned Liquid Column damper) is designed, and its mechanical model is described. Furthermore, the dynamic equations of annular TLCD control of towering structures are derived. By using Sigmoid function and linear superposition method, the composite satisfaction function for wind vibration control of self-supporting tall steel structures is constructed, which is based on the satisfaction principle and combined with the pattern search algorithm. A multi-objective optimization design method for self-supporting high-rise steel structures is established. For the wind-induced vibration control design of a self-supporting high-rise steel structure, the geometric parameters of annular TLCD are taken as design variables, and the composite satisfaction degree composed of vertex displacement, mass ratio and upwind area ratio is taken as the goal. A numerical example of the established method is developed. The research shows that this method can get a set of design parameters to meet the engineering needs quickly and effectively, and the coefficient of variation of the optimal parameters and the corresponding design objectives to the weight combination is less than 0.1, so the method has high robustness. The difficulty of selecting weight coefficient in multi-objective optimization design is reduced.
【作者单位】：苏州科技大学江苏省结构工程重点实验室;东南大学混凝土及预应力混凝土结构教育部重点实验室;中亿丰建设集团股份有限公司;
【基金】：国家自然科学基金(51408389;51438002) 江苏省自然科学基金(BK20140281) 住房和城乡建设部科学技术项目计划(2014-K2-034)
【分类号】：TU391

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