Application of model reduction technique and structural subsection technique on optimal sensor placement of truss structures | |
Lu LL(路玲玲); Wang X(王曦); Liao LJ(廖丽涓); Wei YP(魏延鹏); Huang CG(黄晨光); Liu YC(刘彦池) | |
发表期刊 | SMART STRUCTURES AND SYSTEMS |
2015-02 | |
卷号 | 15期号:2页码:355-373 |
ISSN | 1738-1584 |
摘要 | An optimal sensor placement (OSP) method based on structural subsection technique (SST) and model reduction technique was proposed for modal identification of truss structures, which was conducted using genetic algorithm (GA). The constraints of GA variables were determined by SST in advance. Subsequently, according to model reduction technique, the optimal group of master degrees of freedom and the optimal objective function value were obtained using GA in a case of the given number of sensors. Correspondingly, the optimal number of sensors was determined according to optimal objective function values in cases of the different number of sensors. The proposed method was applied on a scaled jacket offshore platform to get its optimal number of sensors and the corresponding optimal sensor layout. Then modal kinetic energy and modal assurance criterion were adopted to evaluate vibration energy and mode independence property. The experiment was also conducted to verify the effectiveness of the selected optimal sensor layout. The results showed that experimental modes agreed reasonably well with numerical results. Moreover the influence of the proposed method using different optimal algorithms and model reduction technique on optimal results was also compared. The results showed that the influence was very little. |
关键词 | Structural Health Monitoring Optimal Sensor Placement Model Reduction Technique Genetic Algorithm |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000352352400008 |
WOS研究方向 | Engineering ; Instruments & Instrumentation |
WOS类目 | Engineering, Civil ; Engineering, Mechanical ; Instruments & Instrumentation |
项目资助者 | National Natural Science Foundation of China [11472276, 11332011] ; State Key Development Program for Basic Research of China [2011CB711100] |
课题组名称 | LMFS冲击与耦合效应(LHO) |
论文分区 | 二类 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/54979 |
专题 | 流固耦合系统力学重点实验室 |
通讯作者 | Huang CG(黄晨光) |
推荐引用方式 GB/T 7714 | Lu LL,Wang X,Liao LJ,et al. Application of model reduction technique and structural subsection technique on optimal sensor placement of truss structures[J]. SMART STRUCTURES AND SYSTEMS,2015,15,2,:355-373. |
APA | Lu LL,Wang X,Liao LJ,Wei YP,Huang CG,&Liu YC.(2015).Application of model reduction technique and structural subsection technique on optimal sensor placement of truss structures.SMART STRUCTURES AND SYSTEMS,15(2),355-373. |
MLA | Lu LL,et al."Application of model reduction technique and structural subsection technique on optimal sensor placement of truss structures".SMART STRUCTURES AND SYSTEMS 15.2(2015):355-373. |
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