Cable Force Identification Based on Global Optimization by Coupled Local Minimization technique

摘要：

As a new optimization technique, coupled local minimizers (CLM) possesses a high search speed and global search capability,which is applicable to global optimization of functions with multiple local minima, establishes a cooperative search mechanism using a population of local optimizers which are coupled during the search process by synchronization constraints. The CLM method is able to find the global minimum of the cost function with the local gradientbased algorithms and the parallel strategy. Hence,the CLM gives rise to an accurate approach to identifying structural parameters based on the measured modal frequencies combed the robust optimization method and the precise finite element model.In this paper, A method is presented and applied to identify cable parameters from the measured modal frequencies of the Heping Bridge cables.

关键词： Cable-stayed bridge Cable force identification Global optimization Coupled Local Minimizers (CLM) Vibration measurement

作者: Wei Jianjun

作者单位: Xuzhou Institute of Architectural Technology, Xuzhou, Jiangsu, 221008, China China University of Mining & Technology, Xuzhou, Jiangsu, 221008, China

会议类型: 国际会议

会议名称: 2010 International Conference on Intelligent Computation Technology and Automation(2010 智能计算技术与自动化国际会议 ICICTA 2010)

会议地点: 长沙

会议语种:英文

页码: 898-901

在线出版日期: 2010-05-11（万方平台首次上网日期，不代表论文的发表时间）