基于多目标优化设计的主动约束层阻尼板振动控制研究  

Study on the Vibration Control of the ACLD Plate Based on the Multi-objective Optimization Design

作　　者：张东东[1] 郑玲[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《汽车工程学报》2014年第1期50-55,共6页Chinese Journal of Automotive Engineering

基　　金：国家自然科学基金(50775225);机械传动国家重点室自主研究基金(0301002109165)

摘　　要：基于主动约束层阻尼(Active Constrained Layer Damping,ACLD)结构的有限元动力学方程,建立了ACLD板结构的多目标优化模型。以ACLD衬片的位置编号为设计变量,以前两阶模态损耗因子最大化为优化目标,采用改进的快速非支配排序算法(Fast and Elitist Non-Dominated Sorting Genetic Algorithm,NSGA-II)算法,对ACLD衬片的布置位置进行了优化设计。对于不同的优化方案,设计了基于FxLMS(Filtered-x Least Mean Square)算法的控制器,研究了在同一外扰激励下的振动控制效果。结果表明,采用优化后的ACLD衬片配置方案,在被动和主动振动控制中,都具有良好的振动控制效果。Based on the finite element model of the plate partially treated with active constrained layer damping （ACLD）, a multi-objective optimization model of the ACLD/plate was established. Design variables include the location-numbering of the ACLD patches, and the objective was to maximize the first two modal loss factors. The fast and elitist non-dominated sorting genetic algorithm （NSGA-II） was improved to carry out the optimization. After the optimal locations were obtained, the controller employing the FxLMS algorithm was developed. The vibration control simulations of the ACLD/plate excited by the same disturbance were carried out with different optimal ACLD patches configurations. It is shown that the better result of vibration reduction can be achieved in passive and active control modes when the optimal ACLD patches configuration are employed.

关 键 词：主动约束层阻尼(ACLD) 多目标优化设计 快速非支配排序算法(NSGA-II) FXLMS算法 

分 类 号：TB381[一般工业技术—材料科学与工程]