基于多策略判决的斜拉索参数识别系统研究
PDF下载 (492)章联军,王晓东,周 宇,赵兴奎,占 晴.基于多策略判决的斜拉索参数识别系统研究[J].宁波大学学报(理工版),2012,25(04):40-43.DOI:
ZHANG Lian-jun,WANG Xiao-dong,ZHOU Yu,ZHAO Xing-kui,ZHAN Qing.Cable-stayed Parameter Identification System Based on Multi-strategy Judgment[J].Journal of Ningbo University(Natural Science & Engineering Edition),2012,25(04):40-43.DOI:
| Title: | Cable-stayed Parameter Identification System Based on Multi-strategy Judgment |
| 作者: | 章联军, 王晓东, 周 宇, 赵兴奎, 占 晴 |
| Author(s): | ZHANG Lian-jun, WANG Xiao-dong, ZHOU Yu, ZHAO Xing-kui, ZHAN Qing |
| 关键词: | 多策略判决; 模态分析; 基频 |
| Keywords: | multi-strategy judgment; modal analysis; base frequency |
| 分类号: | TP207 |
| 文献标识码: | A |
| 摘要: | 鉴于传统斜拉索监测系统中采用的模态参数识别方法对信号处理误差较大、系统的鲁棒性较差的问题, 通过对多种模态分析算法的比较并结合综合的判决条件得出较准确的模态参数, 设计并实现了基于多策略判决的斜拉索参数识别系统实现信号管理及分析处理, 并将结果以GUI界面予以显示. 进行了实际工程的应用测试，测试表明该系统的分析处理能使基频值更加精确, 并具有很好的时效性和可操作性. |
| Abstract: | Modal parameter identification methods used in the traditional cable-stayed monitoring system have produced significant errors in signal processing, resulting the poor system performance. In this paper, based on analyses and comparison of several modal analysis algorithms and accurate modal parameters obtained by comprehensive judgment conditions, a cable-stayed parameter identification system is designed using multi-strategy judgment, in which the signal management and processing programs are implemented, and the results are displayed via graphical user interface. The real-time test results show that more accurate base frequency value can be obtained using the proposed system with good timeliness and operability. |
| 参考文献 /References: | [1] 高至飞, 于向东, 钱春阳. 随机减量法识别铁路桥模态参数的试验与研究[J]. 广东土木与建筑, 2006, 10(10): 38-40. [2] 孙伟, 何小元, 黄跃平 等. 拉索模型模态参数识别的实验研究[J]. 工程力学, 2008, 25(6):88-94. [3] 占晴, 周宇, 叶庆卫, 等. 基于ERA算法的大桥斜拉索索力检测方法[J]. 电子测量与仪器学报, 2010, 24(8): 743-747. [4] 赵兴奎, 周宇, 李周至, 等. 基于传感器的斜拉索基频提取的混合算法研究[J]. 计算机测量与控制, 2011, 19 (2):380-382. [5] 叶庆卫, 赵挺凯, 周宇, 等. 基于模态准小波的密频模态参数识别[J]. 信息与电子工程, 2011, 9(2):195-201. |
| 备注/Memo: | 收稿日期: 2012-07-31. 国家自然科学基金（61141015）; 浙江省自然科学基金（Y1110161）; 宁波市自然科学基金（2011A610181）; 宁波大学科研项目（XYL09008）. 第一作者: 章联军（1980－）, 男, 浙江兰溪人, 助理研究员, 主要研究方向: 信号传输与处理及网络通信. E-mail: zhanglianjun@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
